CPM Homework Help : PC Problem 7-15

Find the measure of the angle the line $y = 2x + 3$ makes with the $x$ -axis.

Hint:

The slope of the line is the tangent.
So, $\tan \left(θ\right) = 2$

Increasing line passing through the points, (negative 1.5, comma 0), & (0, comma 3), with dashed right triangle where hypotenuse is portion of line between the intercepts, vertical leg labeled, y length = 3, horizontal length labeled, x length = 1.5.