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MArishka [77]
3 years ago
12

PLEASE I NEED HELP ASAP!!!!

Mathematics
2 answers:
Svetllana [295]3 years ago
6 0
The vertex form is
y = a {(x - h)}^{2}  + k
where a is the coefficient, and (h,k) is the vertex. Looking at the graph, we see that the vertex is (-2,2), so h is -2 and k is 2. We see that the parabola opens upwards, so A is positive, and is stretched by a factor of 3. (We can find this by looking where the (1,1) should be. We go over 1 from the parabola, and see where the y coordinate is. This is at (-1,5), or 1 unit right and 3 units up.) Therefore, our a is 3. Plugging this into the vertex form:
y = 3 {(x + 2)}^{2}  + 2
Which is answer A
Black_prince [1.1K]3 years ago
6 0
Filling this spot in and agree that the answer is A. 
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Step-by-step explanation:

We have been given a graph of a rectangle. The area of the shaded section is 63 square units. We are asked to find the value of x.

We can see from our given graph that shaded section forms a trapezoid, so we will use area of trapezoid formula to find the value of x.

\text{Area of trapezoid}=\frac{(a+b)}{2}\times h, where, a and b represents the parallel sides of trapezoid and h represents height of trapezoid.

Upon substituting our given values in above formula we will get,

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Let us subtract 7 from both sides of our equation.

18-7=7-7+x

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Therefore, the value of x is 11 units.

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