Question

WORTH 50 POINTS please help

Answer 1

See below.

Explanation:

Part A

Function A.

x y

3 3

5 7

6 9

slope = (9 - 7)/(6 - 5) = 2

y = 2x + b

3 = 2(3) + b

b = -3

y = 2x - 3

Function A is y = 2x - 3

Function B.

(0, 3)

(-5, 0)

slope = (0 - 3)/(-5 - 0) = -3/-5 = 3/5

b = 3

Function B is y = 3/5 x + 3

Function C is 3x + 1

Part B

The rate of change of a linear function is the slope.

Answer:

Function B

Function A

Function C