Question

A line of best fit for a data set has equation y = 3x - 4. What y-value would you predict for an x-value of 8 in this data set?

A 4

B. 8

C. 16

D. 20

Answer 1

D. 20

Explanation:

The line of best fit for the equation is:

`y = 3x - 4`

When x = 8

We have to find y. So

`y = 3*8 - 4 = 24 - 4 = 20`

So the correct answer is given by option D.