Question

The ordered pair below is a solution to which equation? (3,15)

Answer 1

the equation that has the ordered pair as its solution is;

`y=5x`

E

We want to find the equation that has its solution as the given ordered pair:

`(3,15)`

Let us substitute the value of the x into each equation and see which one gives the correct value of y;

`\begin{gathered} y=5x=5(3)=15\text{ (3,15)} \\ y=3x=3(3)=9\text{ (3,9)} \\ y=(1)/(3)x=(1)/(3)(3)=1\text{ (3,1)} \\ y=(1)/(5)x=(1)/(5)(3)=(3)/(5)\text{ (3,}(3)/(5)) \end{gathered}`

Therefore, from the given options, the equation that has the ordered pair as its solution is;

`y=5x`