OpenStudy (anonymous):

2y = -x + 5 is the equation of a line that passes through the point (1, 2) and has a slope of -1/2. (True of false)

5 years ago
OpenStudy (mertsj):

What is the slope?

5 years ago
OpenStudy (anonymous):

i got x/4 after multiplying the given set

5 years ago
OpenStudy (mertsj):

Solve the equation for y

5 years ago
OpenStudy (mertsj):

Have you heard that before?

5 years ago
OpenStudy (anonymous):

but it tells me the slope is -1/2 so i must be wrong

5 years ago
OpenStudy (mertsj):

Did you solve the equation for y?

5 years ago
OpenStudy (anonymous):

yes, y=-1/2+5/2

5 years ago
OpenStudy (mertsj):

Where did the x go?

5 years ago
OpenStudy (anonymous):

5 years ago
OpenStudy (mertsj):

The coefficient of x is the slope so yes, we see that the slope is - 1/2

5 years ago
OpenStudy (anonymous):

so we know that part is true..

5 years ago
OpenStudy (mertsj):

Now you also want to know if the point (1,2) is on the line. So replace x with 1 and y with 2 and see if it makes the sentence true.

5 years ago
OpenStudy (mertsj):

I guess I am all mixed up. I thought the equation was 2y=-x+5

5 years ago
OpenStudy (mertsj):

Where did you get 4y=x+5?

5 years ago
OpenStudy (anonymous):

4y=-1x+5 4 does equal -1 + 5 so would this be true although i excused x and y?

5 years ago
OpenStudy (mertsj):

Where did you get 4y?

5 years ago
OpenStudy (anonymous):

multiplying 2 by 2y?

5 years ago
OpenStudy (mertsj):

Ohhhhhhl, I see. You don't know how to substitute into an equation.

5 years ago
OpenStudy (anonymous):

guess not.

5 years ago
OpenStudy (mertsj):

Did you every play on a sports team where you had a coach?

5 years ago
OpenStudy (mertsj):

ever

5 years ago
OpenStudy (anonymous):

no im handicapped

5 years ago
OpenStudy (mertsj):

Do you every watch sports on tv and see a coach substitute one player for another?

5 years ago
OpenStudy (anonymous):

yes.

5 years ago
OpenStudy (mertsj):

So one player comes out and another replaces him. That is what happens when you substitute 2 for y and 1 for x. y comes out and 2 replaces it. x comes out and 1 replaces it so we have:

5 years ago
OpenStudy (mertsj):

|dw:1370134871651:dw|

5 years ago