Question

Find the y-intercept and slope of the function’s graph, and find the equation for the function using the table in the picture.

Answer 1

m = (y2-y1)/(x2-x1)

m = (9-5)/(3-2)

m = 4

Substitute the values in y= mx + c,

5 = (4)(2) + c

5 = 8 + c

c = -3

Thus, the equation is y= 4x -3