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laila [671]
3 years ago
14

A quadratic function f(x)=ax2 passes through (0,0) and (5,5). write an equation for this function

Mathematics
1 answer:
krek1111 [17]3 years ago
8 0

Answer:

y = (1/5)x² or  y = x²/5

Step-by-step explanation:

We have the function f(x) = ax² and are given that the point (5,5) is on the parabola.  We need to find 'a'.   f(x) can be replaced with 'y', so we can rewrite the equation as...

y = ax²    

We know that when x = 5, y = 5, so we have

5 = a(5²)      now simplify...

5 = 25a

5/25 = a

1/5 = a, so our equation becomes

(1/5)x² or  x²/5  (the expressions are equal)

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Answer:

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Step-by-step explanation:

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Answer:

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3 years ago
Can plz help me in this question asap I don't get it
34kurt

Answer:

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Step-by-step explanation:

The problem says that you descended 19 below sea level. Below makes 19 into a negative. It also says that it descends 25 feet per minute. If it says per you put a variable by that number. It also says descends which means going down so that would be a negative. The problem says Lainey does not want to go over 144 feet(144 is also negative because it is below sea level) so 144 would be greater than or equal to because she does not wan to go over that amount.

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3 years ago
Calculate the slope of the points (-2, -1) and (3, 4). Show all of your work.
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