1. **State the problem:** We have a quadratic function $g(x) = ax^2 + bx + c$ with roots at $x = -3$ and $x = -2$, and it passes through the point $(0, 12)$ on the y-axis.
2. **Use the roots to write the factored form:** Since the graph cuts the x-axis at $(-3, 0)$ and $(-2, 0)$, these are the roots of the quadratic. The factored form is:
$$g(x) = a(x + 3)(x + 2)$$
where $a$ is a constant to be determined.
3. **Expand the factored form:**
$$g(x) = a(x^2 + 5x + 6) = a x^2 + 5a x + 6a$$
So, comparing with $g(x) = ax^2 + bx + c$, we have:
$$b = 5a, \quad c = 6a$$
4. **Use the y-intercept to find $a$:** The graph passes through $(0, 12)$, so:
$$g(0) = c = 12$$
From step 3, $c = 6a$, so:
$$6a = 12$$
Divide both sides by 6:
$$\cancel{6}a = \cancel{6}2$$
$$a = 2$$
5. **Find $b$ and $c$ using $a=2$:**
$$b = 5a = 5 \times 2 = 10$$
$$c = 6a = 6 \times 2 = 12$$
**Final answer:**
$$a = 2, \quad b = 10, \quad c = 12$$
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