Question

7.

Which points are on the graph of the function rule f(x) = 10 – 4x?

A. (2, –18), (0, –10), (–2, –2)

B. (–2, 18), (0, 10), (2, 2)

C. (18, –2), (10, 0), (2, 2)

D. (–18, 2), (–10, 0), (–2, –2)

Answer 1

Answer: B. (-2, 18), (0, 10), (2, 2)

STEP 1: f(18)= 10 - 4 * 18= 10 - 72= -62... (18, 62)

STEP 2: f(-18)= 10 - 4 * -18= 10 - (-72)= 82... (-18, 82)

STEP 3: f(2)= 10 - 4 * 2=10- 8= 2... (2, 2)

Step-by-step explanation: GRAPHING....

Graph the line using the slope and y-intercept, or two points.

Slope:

− 4

y-intercept:

( 0 , 10 )

x y

0 10

(5) /(2) 0