Question

find the unknown coordinate so the line through the points has the given slope. (-7,-4), (x,0) ; slope is 1/3

Answer 1

y-(-4)=1/3(x-(-7))
y+4=1/3x+7/3
y=1/3x-5/3
so at x=0 y=-5/3

Answer 2

\[y1-y2 \div x1-x2=slope\]
\[-4-0/-7-x = 1/3\]
x=5

Answer 3

\[m=\frac{y2-y1}{x2-x1}\]Plug in what you know. Solve for x.

Answer 4

5