Question

Zefram analyzed a linear relationship found that the slope intercept equation was y= 3.5x + 16 and made a prediction for the value of x. He realized that he made an error calculating the y intercept and they it was actually 12. Can he just subtract from his prediction if he knows that the slope is correct?

Answer 1

Yes

Explanation:

Yes, Zefram can just subtract 4 from his equation y= 3.5x + 16 and thereby obtain the correct prediction for y (not x!):

y= 3.5x + 16

- 4

------------------

y= 3.5x + 12