CPM Homework Help : CCA2 Problem 1-95

If $h(x)=x^2−5$ , where does the graph of $h(x)$ cross the $x$ -axis? Make a sketch of the graph.

Hint:

Remember problem 1-89.

Answer:

$(0)=x^2-5\ \ \ \ 5=x^2\ \ \ \pm\sqrt{5}=x$

Upward parabola labeled, h of x, vertex at (0, comma negative 5).