What is the image of (-4,-4) after a dilation by a scale factor of 3 centered at the origin?
1 answer:
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answer
explanation
since there are 2 x-intercepts, the lowest degree the function could possibly have is 2, so this could be the graph of a parabola
since our zeros are at x = 4 and x = -2, our factors are (x - 4) and (x + 2)
our equation so far is
(x - 4)(x + 2)
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since the function is reflected across the x-axis, multiply the equation by -1
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since the function has a vertical stretch of 3, multiply the equation by 3
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Answer:
The answer is
Step-by-step explanation:
Plug in and solve the equation. We are trying to find the y-intercept:
We found the y-intercept, so now we plug it in it's right full spot in the formula.