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3 years ago

For the function y=400-22x, what is the rate of change

Mathematics

1 answer:

dolphi86 [110]3 years ago

8 0

Answer:

-22

Step-by-step explanation:

The function y=400-22x is a linear equation in the form y=mx + b. Although they put "mx" after "b" so the equation doesn't start with a negative.

"m" is rate of change, or the slope if graphed.

The negative means "y" decreases as "x" increases. On a graph, it decreases left to right.

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Write a quadratic function in vertex form whose graph has the vertex (−5, −1) and passes through the point (−2, 2)

fenix001 [56]

$f(x) = a(x+5)^2-1$

$2 = a(-2+5)^2-1 \\ 9a = 3 \\ a = 3$

$f(x) = 3(x+5)^2-1$

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3 years ago

What is the solution to this equation?<br> 17.56 = 29.01 - 5x

Daniel [21]

Answer:

2,29

Step-by-step explanation:

17,56 = 29,01 - 5x

5x = 29,01 - 17,56

5x = 11,45|:5

x = 2,29

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2 years ago

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In the figure to the right, if AC = 15 and BC = 12, what is the radius?

Andrew [12]

Answer:

The radius is 9.0 units

Step-by-step explanation:

we know that

In the right triangle of the figure ABC

Applying the Pythagorean Theorem

$AC^2=AB^2+BC^2$

substitute the given values

$15^2=AB^2+12^2$

solve for AB

$AB^2=15^2-12^2\\AB^2=81\\AB=9\ units$

Remember the the side AB of right triangle represent the radius of the circle

therefore

The radius is 9.0 units

6 0

3 years ago

What is the slope of the line in this equation 2x – 4y = 6?

fomenos

Pretty sure it’s -4/2

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3 years ago

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PRECALCULUS QUESTION PLEASE HELP!!!!!!

elena-s [515]

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answer
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2 years ago

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