Hi there! :)
First, let's find the slope using this formula:
m=[tex]\frac{y2-y1}{x2-x1}[/tex]
m=[tex]\frac{-7-(-10)}{-4-1} \\\frac{-7+10}{-5} \frac{3}{-5} =-\frac{3}{5}[/tex]
Now, use the Point-Slope formula:
y-y1=m(x-x1)
y-(-10)=-3/5(x-1)
y+10=-3/5x+3/5
y=-3/5x+3/5-10
y=-3/5x-9.4
Hope this helps..
~Just an emotional teen who listens to "Try Everything"
[tex]SilentNature[/tex]