The equation $f(x) + x - 1 = 0$ can be solved by drawing a line on the grid. (e) (i), (ii) (refer below)
up vote
-1
down vote
favorite
(e)
(i) Write down the equation of this line.
(ii) How may solutions are there for $f(x) + x - 1 = 0$
I was able to get the answer for (i), which is $f(x) = 1 - x$. But, I want to know how to find out the number of solutions (answer for (ii)) without really drawing the line on the graph.
graphing-functions
asked Nov 21 at 13:28
V11
175
|
show 1 more comment
up vote
-1
down vote
favorite
(e)
(i) Write down the equation of this line.
(ii) How may solutions are there for $f(x) + x - 1 = 0$
I was able to get the answer for (i), which is $f(x) = 1 - x$. But, I want to know how to find out the number of solutions (answer for (ii)) without really drawing the line on the graph.
graphing-functions
asked Nov 21 at 13:28
V11
175
It will be more useful if you typed it because in some of phones image display may not be a handy thing.
– jayant98
Nov 21 at 13:31
I took a picture to display the graph given.
– V11
Nov 21 at 13:38
what's wrong with drawing the line?
– Vasya
Nov 21 at 13:47
Drawing the line might not be very accurate (mainly because each unit in the graph is very small). Also, the question never mentioned to use the graph to find out the number of solutions (unlike (c)).
– V11
Nov 21 at 13:51
You are in part (e), where it says you can solve it by drawing a line. If you want an exact solution, you need the equation of the line (not given). Other options: look at the answer sheet, ask someone else to draw the line for you, ...
– Andrei
Nov 21 at 14:16
|
show 1 more comment
up vote
-1
down vote
favorite
up vote
-1
down vote
favorite
(e)
(i) Write down the equation of this line.
(ii) How may solutions are there for $f(x) + x - 1 = 0$
I was able to get the answer for (i), which is $f(x) = 1 - x$. But, I want to know how to find out the number of solutions (answer for (ii)) without really drawing the line on the graph.
graphing-functions
asked Nov 21 at 13:28
V11
175
(e)
(i) Write down the equation of this line.
(ii) How may solutions are there for $f(x) + x - 1 = 0$
I was able to get the answer for (i), which is $f(x) = 1 - x$. But, I want to know how to find out the number of solutions (answer for (ii)) without really drawing the line on the graph.
graphing-functions
graphing-functions
asked Nov 21 at 13:28
V11
175
asked Nov 21 at 13:28
V11
175
edited Nov 21 at 13:46
asked Nov 21 at 13:28
V11
175
asked Nov 21 at 13:28
V11
175
asked Nov 21 at 13:28
V11
175
175
It will be more useful if you typed it because in some of phones image display may not be a handy thing.
– jayant98
Nov 21 at 13:31
I took a picture to display the graph given.
– V11
Nov 21 at 13:38
what's wrong with drawing the line?
– Vasya
Nov 21 at 13:47
Drawing the line might not be very accurate (mainly because each unit in the graph is very small). Also, the question never mentioned to use the graph to find out the number of solutions (unlike (c)).
– V11
Nov 21 at 13:51
You are in part (e), where it says you can solve it by drawing a line. If you want an exact solution, you need the equation of the line (not given). Other options: look at the answer sheet, ask someone else to draw the line for you, ...
– Andrei
Nov 21 at 14:16
|
show 1 more comment
It will be more useful if you typed it because in some of phones image display may not be a handy thing.
– jayant98
Nov 21 at 13:31
I took a picture to display the graph given.
– V11
Nov 21 at 13:38
what's wrong with drawing the line?
– Vasya
Nov 21 at 13:47
Drawing the line might not be very accurate (mainly because each unit in the graph is very small). Also, the question never mentioned to use the graph to find out the number of solutions (unlike (c)).
– V11
Nov 21 at 13:51
You are in part (e), where it says you can solve it by drawing a line. If you want an exact solution, you need the equation of the line (not given). Other options: look at the answer sheet, ask someone else to draw the line for you, ...
– Andrei
Nov 21 at 14:16
It will be more useful if you typed it because in some of phones image display may not be a handy thing.
– jayant98
Nov 21 at 13:31
It will be more useful if you typed it because in some of phones image display may not be a handy thing.
– jayant98
Nov 21 at 13:31
I took a picture to display the graph given.
– V11
Nov 21 at 13:38
I took a picture to display the graph given.
– V11
Nov 21 at 13:38
what's wrong with drawing the line?
– Vasya
Nov 21 at 13:47
what's wrong with drawing the line?
– Vasya
Nov 21 at 13:47
Drawing the line might not be very accurate (mainly because each unit in the graph is very small). Also, the question never mentioned to use the graph to find out the number of solutions (unlike (c)).
– V11
Nov 21 at 13:51
Drawing the line might not be very accurate (mainly because each unit in the graph is very small). Also, the question never mentioned to use the graph to find out the number of solutions (unlike (c)).
– V11
Nov 21 at 13:51
You are in part (e), where it says you can solve it by drawing a line. If you want an exact solution, you need the equation of the line (not given). Other options: look at the answer sheet, ask someone else to draw the line for you, ...
– Andrei
Nov 21 at 14:16
You are in part (e), where it says you can solve it by drawing a line. If you want an exact solution, you need the equation of the line (not given). Other options: look at the answer sheet, ask someone else to draw the line for you, ...
– Andrei
Nov 21 at 14:16
|
show 1 more comment
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Some of your past answers have not been well-received, and you're in danger of being blocked from answering.
Please pay close attention to the following guidance:
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3007728%2fthe-equation-fx-x-1-0-can-be-solved-by-drawing-a-line-on-the-grid-e%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
It will be more useful if you typed it because in some of phones image display may not be a handy thing.
– jayant98
Nov 21 at 13:31
I took a picture to display the graph given.
– V11
Nov 21 at 13:38
what's wrong with drawing the line?
– Vasya
Nov 21 at 13:47
Drawing the line might not be very accurate (mainly because each unit in the graph is very small). Also, the question never mentioned to use the graph to find out the number of solutions (unlike (c)).
– V11
Nov 21 at 13:51
You are in part (e), where it says you can solve it by drawing a line. If you want an exact solution, you need the equation of the line (not given). Other options: look at the answer sheet, ask someone else to draw the line for you, ...
– Andrei
Nov 21 at 14:16