1. **State the problem:** We are given a piecewise linear function with two segments intersecting at $x=0$. The left segment goes from $(-2,3)$ to $(0,-4)$ and the right segment goes from $(0,-4)$ to $(2,3)$. We need to determine which two statements correctly describe this function from the options:
A) It is linear
B) It is decreasing at a constant rate
C) It is increasing at a constant rate
2. **Analyze the left segment:**
Calculate the slope using the formula $$m=\frac{y_2 - y_1}{x_2 - x_1}$$
For points $(-2,3)$ and $(0,-4)$:
$$m=\frac{-4 - 3}{0 - (-2)}=\frac{-7}{2}=-3.5$$
This slope is negative, so the function is decreasing at a constant rate on the left segment.
3. **Analyze the right segment:**
Calculate the slope for points $(0,-4)$ and $(2,3)$:
$$m=\frac{3 - (-4)}{2 - 0}=\frac{7}{2}=3.5$$
This slope is positive, so the function is increasing at a constant rate on the right segment.
4. **Check linearity:**
Each segment is linear because the slope is constant within each segment. However, the entire function is not linear because it has two different slopes and a corner at $x=0$.
5. **Conclusion:**
- The function is not linear overall (so A is false).
- The left segment is decreasing at a constant rate (B is true).
- The right segment is increasing at a constant rate (C is true).
**Final answer:** The correct statements are B and C.
Piecewise Slope 3C508D
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