Question

A data set consists of the following data points:

(2, 4), (4, 7), (5, 12)

The line of best fit has the equation = -1.5 + 2.5x. What does this equation predict for a value of x = 7?

A. 20.5
B. 17.5
C. 16
D. 19

Answer 1

@Directrix

Answer 2

hello

Answer 3

y = -1.5 + 2.5x

Evaluate the function for x = 7

y = -1.5 + 2.5 * 7

y = ? @2kende

Answer 4

im stuck

Answer 5

wut do u mean evaluate the function?

Answer 6

Multiply 2.5 times 7 and post what you get, okay?

Answer 7

17.5

Answer 8

Add - 1.5 to 17.5 and post what you get, okay?

Answer 9

16

Answer 10

What does this equation predict for a value of x = 7?

y = -1.5 + 2.5x

y = -1.5 + 2.5 * 7

y = 16

Correct.

Answer 11

<3

Answer 12

You are welcome.

Answer 13

im still kinda stuck. can u help wit another?