Question

Determine the y-value of each ordered pair based on the given x-value. y = 6x – 15; (8, ),(-1, ) (5, )

Answer 1

We can use the equation for y to calculate its value for each value of x:

`y=6x-15`

Then, for x=8, x=-1 and x=5, we have:

`\begin{gathered} x=8 \\ y=6(8)-15=48-15=33 \end{gathered}`
`\begin{gathered} x=-1 \\ y=6(-1)-15=-6-15=-21 \end{gathered}`
`\begin{gathered} x=5 \\ y=6(5)-15=30-15=15 \end{gathered}`

Then we have the pairs (8, 33), (-1, -21) and (5, 15).