Answer:
7 bucks
Step-by-step explanation:
x*.8=5.62
divide both sides by .8
x=7
Answer:
A parent function is the simplest function that still satisfies the definition of a certain type of function. For example, when we think of the linear functions which make up a family of functions, the parent function would be y = x. This is the simplest linear function
Answer:
The equation should be written like this
18 + 30 = 3(6 + 10)
Step-by-step explanation:
The 3 and 6 should be swapped.
Answer:
<h2>(-1, 17)</h2>
Step-by-step explanation:
The vertex form of a quadratic equation:
![y=a(x-h)^2+k](https://tex.z-dn.net/?f=y%3Da%28x-h%29%5E2%2Bk)
<em>(h, k)</em> - vertex
![y=x^2+2x+18](https://tex.z-dn.net/?f=y%3Dx%5E2%2B2x%2B18)
<em>use (a + b)² = a² + 2ab + b² </em><em>(*)</em>
![y=\underbrace{x^2+2(x)(1)+1^2}_{(*)}-1+18](https://tex.z-dn.net/?f=y%3D%5Cunderbrace%7Bx%5E2%2B2%28x%29%281%29%2B1%5E2%7D_%7B%28%2A%29%7D-1%2B18)
![y=(x+1)^2+17\\\\y=(x-(-1))^2+17](https://tex.z-dn.net/?f=y%3D%28x%2B1%29%5E2%2B17%5C%5C%5C%5Cy%3D%28x-%28-1%29%29%5E2%2B17)
<em>h = -1, k = 17</em>
Answer: Choice C
(4, 18)
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Explanation:
One point shown on the graph is (2,9)
If we double each x and y coordinate, then
We go from (2,9) to (4,18)
Plotting this point on the graph will be on the same line as the other points.
Or you could note that y/x = 9/2 = 18/4 = 4.5