### Home > CCA2 > Chapter Ch2 > Lesson 2.2.3 > Problem 2-129

2-129.

Consider the system of equations at right: Homework Help ✎

What is the parent of each equation?

Both equations are equations of lines.

Solve this system algebraically.

Multiply the first equation by −3, then use elimination.

Now substitute the value found for*x*into the equationand solve for *y*.Find where the two graphs intersect.

The graphs intersect at the solution to both equations.

Explain the relationship between parts (b) and (c) above.

See part (c).