CPM Homework Help : CCAA8 Problem 10-127

Solve algebraically to find all points where the graphs of $y=x^2-3x+2$ and $y=2x+8$ intersect.

Step 1:

Use the Equal Values Method. Note that since you have an $x^2$ -term, you should be looking for two answers.

Step 2:

Substitute your answers, one at a time, back into one of the equations, and solve for the corresponding $y$ -coordinates.

Answer:

$\left(-1,6\right)$ and $\left(6,20\right)$