Question

Find the equation for the linear function based upon this table. y = mx + b

y -6 -2 2 6 10
x -4 -2 0 2 4

Answer 1

y = 2x + 2

Explanation:

for each rise of 4 in y

there is a run of 2 in x

m = rise/run

m = 4/2

m = 2

when x = 0, y = 2

therefor the y-intercept, b = 2

y = mx + b

y = 2x + 2