anonymous one year ago Help: Which equation represents this line in point-slope form? (y−6)=−7/9(x+4) (y−3)=7/9(x−6) (y−3)=−9/7(x−3) (y−3)=9/7(x−3)

1. anonymous
2. anonymous

which one do you think?

3. anonymous

b?

4. anonymous

look, to find the correct point slope form of this this line, first find the slope, of the line. to find the slope, use the slope formula $m=\frac{ y_2-y_2 }{ x_2-x_1 }$ the slope of your line will be 9/7. So already there is only d is correct. But if you want to know how to continue the finding of point slope form of this line, here it is: (could you just wait a minute, please? it will take some time to me to write the explanation)

5. anonymous

the point slope form of the line is $y-y_1=m(x-x_1)$ or $y-y_2=m(x-x_2)$

6. anonymous

since the line goes through points (3, 3) and (-4, -6), the point slope form of the line will be the following: $y-3=9/7(x-3)$ AND $y-(-6)=9/7(x-(-4))$ $y+6=9/7(x+4)$ Note that both equation are correct, but in this problem you have only one equation. which is the last one. (in your choices)

7. anonymous

oh ok I got everything you said thank you so much!! @ksanka

8. anonymous

np :)