CPM Homework Help : CALC Problem 1-103

Multiple Choice: The values of $x$ for which the graphs of $y = x + 3$ and $y^2 = 6x$ intersect are:

Step 1:

Solve the equation $y = x + 3$ for $x$ .

Hint:

Does this equation have any solutions?

Step 2:

Substitute this value into the second equation. $y^2 = 6(y-3)$

Step 3:

Set this equation equal to $0$ . $y^2-6y + 18 = 0$