1. **State the problem:** We are given a parabola with vertex at $(-1,-4)$, crossing the y-axis at $(0,3)$, and x-axis at approximately $(-3,0)$ and $(1,0)$. We need to find:
(a) $h(2)$, the value of the function at $x=2$.
(b) One value of $x$ such that $h(x) = -2$.
2. **Find the function formula:** Since the parabola opens upwards and has vertex $(-1,-4)$, its equation can be written in vertex form:
$$h(x) = a(x+1)^2 - 4$$
We use the point $(0,3)$ to find $a$:
$$3 = a(0+1)^2 - 4$$
$$3 = a(1)^2 - 4$$
$$3 = a - 4$$
$$a = 7$$
So the function is:
$$h(x) = 7(x+1)^2 - 4$$
3. **Find $h(2)$:**
$$h(2) = 7(2+1)^2 - 4 = 7(3)^2 - 4 = 7 \times 9 - 4 = 63 - 4 = 59$$
4. **Find $x$ such that $h(x) = -2$:**
Set the function equal to $-2$:
$$7(x+1)^2 - 4 = -2$$
Add 4 to both sides:
$$7(x+1)^2 = -2 + 4$$
$$7(x+1)^2 = 2$$
Divide both sides by 7:
$$\frac{7(x+1)^2}{\cancel{7}} = \frac{2}{\cancel{7}}$$
$$ (x+1)^2 = \frac{2}{7}$$
Take the square root of both sides:
$$x+1 = \pm \sqrt{\frac{2}{7}}$$
Solve for $x$:
$$x = -1 \pm \sqrt{\frac{2}{7}}$$
One value of $x$ is:
$$x = -1 + \sqrt{\frac{2}{7}}$$
**Final answers:**
(a) $h(2) = 59$
(b) One value of $x$ for which $h(x) = -2$ is $x = -1 + \sqrt{\frac{2}{7}}$
Parabola Values 2Aeffe
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