## anonymous one year ago What is the equation of the line that passes through the points (−2, 3) and (2, 7)? x − y = −1 x − y = −2 x − y = − 5 x − y = − 6

1. anonymous

@imqwerty

2. imqwerty

put the points in the equations given in options the one which satisfies both is the answer :)

3. anonymous

idk how to

4. imqwerty

or u can do it like this- equation of a line passing through (x1,y1) and (x2,y2) is given by- $\frac{ y-y_{1} }{ y_{2}-y_{1}}=\frac{ x-x_{1} }{ x_{2}-x_{1} }$

5. anonymous

ok

6. imqwerty

:)

7. anonymous

y2-y1/x2-x1 to find the slope, once found use y-y1=m(x-x1)

8. anonymous

im stuck

9. anonymous

are you stuck at the beginning?

10. anonymous

yea

11. imqwerty

ok so we got the equation lets put (x1,y1) and (x2,y2) $\frac{ y-3 }{ 7-3 }=\frac{ x- (-2)}{ 2-(-2) }=>\frac{ y-3 }{ 4 }=\frac{ x+2 }{ 4 }$$y-3=x+2 =>x-y=-5$

12. anonymous

ok i see it now , i just needed to see how to put it in form

13. anonymous

so its c?

14. imqwerty

yes (:

15. anonymous

ty

16. imqwerty

np :D