Question

max is finding the perimeter of different - sized equilateral triangles. an equilateral triangle with 1 - foot side lengths has a perimeter of 3 feet. an equilateral triangle with 3 - foot side lengths has a perimeter of 9 feet. in this relationship, x represents the side length of the equilateral triangle in feet, and y represents the perimeter of the equilateral triangle in feet. graph two points for this relationship and the line passing through them.

Explanation:

Step1: Recall perimeter formula

For an equilateral triangle, the perimeter $y = 3x$ (since all sides are equal and there are 3 sides).

Step2: Choose points to graph

When $x = 1$, $y=3\times1 = 3$. So one point is $(1,3)$.
When $x = 3$, $y = 3\times3=9$. So another point is $(3,9)$.

Answer:

Graph the points $(1,3)$ and $(3,9)$ and draw a line passing through them.