Question

Complete the point slope equation of the line through (1,-1) and (5,2)

Answer 1

y = 0.75x - 1.75

Explanation:

To find the slope we do (Y1 - Y2)/(X1-X2) aka rise over run

So, m = (-1 - 2) / (1 - 5)

m = 0.75

Now we have y = 0.75x +b

We can plug in x and y values to find b

2 = 0.75(5) +b

b = -1.75

Therefore,

y = 0.75x - 1.75