1. Let's analyze the given graph description to understand the function $y = h(x)$.
2. The graph has two connected curved segments separated near $x = -2$:
- The first segment is on the left with a concave downward shape passing through points approximately $(-7, 7)$ to an open circle near $(-2, 4)$.
- The second segment is on the right with a concave upward shape starting at a filled circle near $(-2, 2)$ and passing through $(0, 5)$ and $(5, 7)$.
3. From the open and filled circle at $x=-2$, we see the function is **not continuous** at $x=-2$.
4. Approximate forms:
- Left side: Since the curve is concave downward and ends lower at $x=-2$, we can model it approximately as a quadratic with negative leading coefficient.
- Right side: A concave upward quadratic curve rising from $(-2,2)$ through $(0,5)$ and $(5,7)$.
5. Using points $(−2,2)$, $(0,5)$, $(5,7)$ on right segment, find quadratic $y = ax^2 + bx + c$:
- At $x=0$: $c=5$
- At $x=-2$: $4a - 2b + 5 = 2$ so $4a - 2b = -3$
- At $x=5$: $25a + 5b + 5 = 7$ so $25a + 5b = 2$
6. Solve system:
- Multiply first by 5: $20a - 10b = -15$
- Multiply second by 2: $50a + 10b = 4$
- Add: $70a = -11$, thus $a = -\frac{11}{70}$
- From $4a - 2b = -3$ substitute $a$: $4(-\frac{11}{70}) - 2b = -3 \Rightarrow -\frac{44}{70} - 2b = -3$
- $-2b = -3 + \frac{44}{70} = -3 + \frac{22}{35} = -\frac{105}{35} + \frac{22}{35} = -\frac{83}{35}$
- So $b = \frac{83}{70}$
7. Thus, right side quadratic is:
$$h(x) = -\frac{11}{70}x^2 + \frac{83}{70}x + 5, \quad x \geq -2$$
8. Left side curve is concave downward ending near $(-2,4)$ with an open circle. Passing through $(-7,7)$. Assume quadratic $y = A(x+2)^2 + B$ with vertex form for fitting:
- At $x= -7$: $7 = A(-7 + 2)^2 + B = 25A + B$
- At $x= -2$: function approaches 4 but open circle means $h(-2)$ does not equal 4, so limit is 4.
9. Because of open circle at $(-2,4)$, left function does not include $x=-2$ value, so the function limit is 4 there. Approximate $B=4$.
10. Using $7=25A +4$ gives $A = \frac{3}{25}$, which is positive, so curve would be concave upward, contradicting description. Instead, try $y = D - E(x+2)^2$ (negative sign for concave downward), passing through $(-7,7)$ and approaching 4 at $x=-2$:
- At $x = -2$: $y = D - E(0) = D$ approx 4, so $D=4$
- At $x = -7$: $7 = 4 - E(5)^2 = 4 - 25E$ so $-25E = 3$ and $E = -\frac{3}{25}$, negative, which contradicts the form.
11. Check form $y = Mx^2 + Nx + P$, with points $(-7,7)$ and limit near $(-2,4)$:
- Let $x=-2$ limit: $M(-2)^2 + N(-2) + P = 4$ or $4M - 2N + P =4$
- At $x=-7$: $49M -7N + P=7$
12. Let $P=4$ arbitrarily, then
- $4M - 2N + 4 =4 \Rightarrow 4M - 2N =0$
- $49M -7N +4=7 \Rightarrow 49M -7N=3$
13. Multiply first by 3.5 to eliminate $N$:
- $14M -7N=0$
- Subtract from $49M -7N=3$ gives $35M=3$ so $M=\frac{3}{35}$
- From $4M - 2N=0$ gives $2N =4M = \frac{12}{35}$ so $N=\frac{6}{35}$
14. Left function:
$$h(x) = \frac{3}{35}x^2 + \frac{6}{35}x + 4, \quad x < -2$$
15. Summary:
$$h(x) = \begin{cases}
\frac{3}{35}x^2 + \frac{6}{35}x + 4, & x < -2 \\
-\frac{11}{70}x^2 + \frac{83}{70}x + 5, & x \ge -2
\end{cases}$$
16. The function is discontinuous at $x=-2$, with $h(-2) = -\frac{11}{70}(-2)^2 + \frac{83}{70}(-2) + 5 = 2$ but left side limit is 4 (open circle).
Piecewise Curve
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