Question

You just found that x = 2. That’s the same as the x-coordinate at the point of intersection. Let’s see if the corresponding y-coordinate is the same, too. What’s the value of y when x = 2? You can use either equation to find out. You can solve on paper, and then enter your answer on Zearn.
Miles Jiro bikes per week: y= 50+15x
Miles Trina bikes per week: y= 60+10x


y= 50+15x
y= 60+10x
When x= 2, y=

Answer 1

To find the value of \( y \) when \( x = 2 \) for both equations, we can substitute \( x = 2 \) into each equation.

For Miles' equation:
\[
y = 50 + 15x
\]
Substituting \( x = 2 \):
\[
y = 50 + 15(2) = 50 + 30 = 80
\]

For Trina's equation:
\[
y = 60 + 10x
\]
Substituting \( x = 2 \):
\[
y = 60 + 10(2) = 60 + 20 = 80
\]

So, when \( x = 2 \), the value of \( y \) is \( 80 \) for both Miles and Trina. Thus, the corresponding \( y \)-coordinate at the point of intersection is \( 80 \).