## anonymous one year ago A set of data points has an equation of = -1.5 + 2.5x. What is the residual for the point (5, 12)? A. 1 B. -1 C. 11 D. 12

1. jim_thompson5910

when you plug x = 5 into -1.5 + 2.5x, what do you get?

2. anonymous

@jim_thompson5910 When i id it befor it didnt work and said it was wrong

3. anonymous

did*

4. jim_thompson5910

what result did you get

5. anonymous

11

6. anonymous

C

7. jim_thompson5910

the point given is (5,12) the observed y value is 12 the predicted y value you got is y-hat = 11

8. jim_thompson5910

$\LARGE \text{residual} = (\text{observed y}) - (\text{predicted y})$ $\LARGE \text{residual} = (y) - (\hat{y})$ $\LARGE \text{residual} = (12) - (11)$ I'm sure you see how to finish up here

9. anonymous

So it is 1

10. anonymous

the Large text is weird looking

11. jim_thompson5910

yes the difference between what reality is and what the predicted value is

12. jim_thompson5910

sorry I probably went too big lol

13. anonymous

it is ok =3