Question 370340
find an equation of line having the given slope contining the given point 
m= -7, (3,5)

Standard equation of a line
y = mx + b
where m = the slope
      b = the y intercept

Substitute the given values

5 = -7(3) + b
b = 5 + 21 = 26

So the equation of the line is
y = -7x + 26