Answer: a) h = 2
b) a = k =
<u>Step-by-step explanation:</u>
The vertex form of a quadratic equation is: y = a(x - h)² + k where
The graph shows the axis of symmetry at x = 2, therefore, the x-coordinate of the vertex (h) is 2.
Two points are given: . We can use these points to create two equations and then solve the system to find the a and k-values.
y = a(x - 2)² + k
Solve for k:
Answer:
The diameter of the circle is 22 units.
Step-by-step explanation:
x² + y² - 16x + 12y = 21 I graphed this equation on the graph below.
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Answer:
Copy's area is 16 times bigger then triangle area.
Step-by-step explanation:
Given:
Area of copy = 72 unit²
Find:
How bigger copy compared to triangle
Computation:
Area of triangle = [1/2][base][height]
Area of triangle = [1/2][3][3]
Area of triangle = 4.5 unit²
So.
Area of copy / Area of triangle
72 / 4.5
16
So,
Copy's area is 16 times bigger then triangle area.
