Question

Find the equation of the linear function represented by the table below in slope-

intercept form.
х
у
1
8
2
12
3
16
4
20

Answer 1

y = 4x+4

Explanation:

Using the coordinate point (1, 8) and (2, 12) from the table

Slope m = 12-8/2-1

m = 4/1

m = 4

Get the intercept

Substitute m = 4 and (1, 8) into y = mx+c

8 = 4(1) + c

8 - 4 = c

c = 4

Get the required equation

y = 4x + 4

Hence the required linear equation is y = 4x+4