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tatiyna
2 years ago
7

Graph the function. y = 2x^2 + 4x

Mathematics
1 answer:
rodikova [14]2 years ago
3 0

Answer:

Step-by-step explanation:

The function y = 2x^2 + 4x has a parabolic graph that opens up.  

*In factored form we have y = 2x(x + 2); if we set this equal to zero and solve for x, we obtain {-2, 0}, the roots of this function.  

*The axis of symmetry is halfway between these roots:  x = -1.  The y-value of the vertex is the value of the function at x = -1:  f(-1) = 2(-1)^2 + 4(-2) = -6.  Thus, the vertex is (-1, -6).

* The y-intercept is (0, 0), since y = 0 when x = 0.

Graph the points shown and draw a smooth curve through them, remembering that this parabola opens up.

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If a rectangles width is twice as long as its length. If the perimeter is 36in find its length.
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4 0
3 years ago
a company is offering a job with a salary of $30,000 for the first year and a 5% raise each year after that. if the 5% raise con
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<span>First year is 30,000.
</span><span>Earn 5% raise every year.
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<span>The individual yearly calculations are shown below: </span>

8 0
3 years ago
Joe went shopping for a guitar in Fairfax. He purchased one originally priced at $240 but discounted 80%. If sales tax in Fairfa
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Hope this helps :)

4 0
3 years ago
Read 2 more answers
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Sampling distribution

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