Let $f(x)={x}^{2}+x-6$.

a. Write down the $y$-intercept of the graph of $f$.

how do we figure this out? I know $f(x)$ means $y$, so do we use the quadratic formula? ${x}^{2}+x-6$.

b. Solve $f(x)=0$.

We plug $0$ into the $x$’s in the original formula, right?

a. Write down the $y$-intercept of the graph of $f$.

how do we figure this out? I know $f(x)$ means $y$, so do we use the quadratic formula? ${x}^{2}+x-6$.

b. Solve $f(x)=0$.

We plug $0$ into the $x$’s in the original formula, right?