Pippi was solving an equation that had one variable. Pippi wanted to solve by graphing. She set each expression of the equation equal to y. Next, she entered both equations in the Desmos graphing calculator. Pippi discovered that the two lines intersected at the point (-4, 1).

Question

What value was x in Pippi's original equation?

1, because Pippi is looking for y and y comes second in an ordered pair.

1, because Pippi is looking for x and x comes second in an ordered pair.

-4, because Pippi is looking for x and x comes first in an ordered pair.

-4, because Pippi is looking for y and y comes first in an ordered pair.

Answer 1

In an ordered pair \((x, y)\), the first value represents \(x\) and the second value represents \(y\).

Since Pippi discovered that the two lines intersected at the point \((-4, 1)\), the first value of the pair, \(-4\), corresponds to \(x\).

Therefore, the correct choice is:

-4, because Pippi is looking for x and x comes first in an ordered pair.