Question

8. For each function, find ordered pairs for x = -2, x = 5,2x=and x=0.75. Create tables of values.31a. y=9 - 4xb. y =х

Answer 1

We need to check the ordered pairs for x = -2, x=5, x= 2/3 and x = 0.75.

1. For the first function: y = 9-4x

x=-2

`\begin{gathered} y=9-4\cdot(-2) \\ y=9+8 \\ y=17 \end{gathered}`

The ordered pair is (-2,17).

x = 5

`\begin{gathered} y=\text{ 9-4}\cdot(5) \\ y=9-20 \\ y=-11 \end{gathered}`

The ordered pair is (5,-11).

x = 2/3

`\begin{gathered} y=9-4\cdot((2)/(3)) \\ y=9-(8)/(3) \\ y=(27-8)/(3) \\ y=(19)/(3) \end{gathered}`

The ordered pair is (2/3, 19/3)

x = 0.75

`\begin{gathered} y=9-4\cdot(0.75) \\ y=9-3=6 \end{gathered}`