1. **State the problem:** We need to find the equation of the secant line passing through the points $(-4, h(-4))$ and $(2, h(2))$ where $h(x) = x^3 + 6$.
2. **Calculate the function values at the given points:**
$$h(-4) = (-4)^3 + 6 = -64 + 6 = -58$$
$$h(2) = 2^3 + 6 = 8 + 6 = 14$$
3. **Find the slope $m$ of the secant line:**
The slope formula is
$$m = \frac{y_2 - y_1}{x_2 - x_1}$$
Substitute the points:
$$m = \frac{14 - (-58)}{2 - (-4)} = \frac{14 + 58}{2 + 4} = \frac{72}{6}$$
Show cancellation:
$$m = \frac{\cancel{72}}{\cancel{6}} = 12$$
4. **Use point-slope form to find the equation:**
Point-slope form is
$$y - y_1 = m(x - x_1)$$
Using point $(-4, -58)$:
$$y - (-58) = 12(x - (-4))$$
Simplify:
$$y + 58 = 12(x + 4)$$
5. **Expand and solve for $y$:**
$$y + 58 = 12x + 48$$
Subtract 58 from both sides:
$$y = 12x + 48 - 58$$
$$y = 12x - 10$$
**Final answer:**
$$\boxed{y = 12x - 10}$$
Secant Line 18B25F
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