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3 years ago

How to find the rate of a Change?

1 answer:

7 0

The correct answer is the vertical change divided by the horizontal change between two points on a line. We can find the slope of a line on a graph by counting off the rise and the run between two points. If a line rises 4 units for every 1 unit that it runs, the slope is 4 divided by 1, or 4.

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If d(x)=9x^2 and g(x)=5x+7 then d(x)-g(x) can be rewritten as

Angelina_Jolie [31]

Answer:

$9x^2-5x-7$

Step-by-step explanation:

$d(x)=9x^2\\g(x)=5x+7\\d(x)-g(x)=\\(9x^2)-(5x+7)=\\9x^2-5x-7$

Hope this helps!

7 0

3 years ago

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Witch is greater -4 or 8/2

OLga [1]

8/2 is the greater one.

6 0

3 years ago

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Find the difference in simplest form:

Andrew [12]

Answer:

D. is the answer I got i think it is right but IDK

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3 years ago

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What number does these numbers share -21,22,65?

finlep [7]

Answer:

uh cuz

Step-by-step explanation:

8 0

3 years ago

Determine g(x + a) – g(x) for the following function. g(x) = 5x2 + 2x

dusya [7]

Answer:

$g(x + a) - g(x) = 10ax + 5a^2 + 2a$

Step-by-step explanation:

We are given the function:

$g(x) = 5x^2 + 2x$

And we want to determine:

$\displaystyle g(x+a) - g(x)$

Substitute:

$\displaystyle \begin{aligned}g(x + a) - g(x) &=\left[5(x+a)^2 + 2(x+a)\right] -\left[5x^2+2x\right] \end{aligned}$

And simplify:

$\displaystyle \begin{aligned}g(x + a) - g(x) &=\left[5(x+a)^2 + 2(x+a)\right] -\left[5x^2+2x\right] \\ \\ &= \left(5(x^2 + 2ax + a^2) + (2x + 2a) \right) + \left(-5x^2 - 2x\right) \\ \\ &= \left((5x^2 + 10ax + 5a^2) + (2x + 2a)\right) + \left(-5x^2 - 2x\right) \\ \\ &= (5x^2-5x^2) + (10ax + 2x - 2x) + (5a^2+2a) \\ \\ &= 10ax + 5a^2 + 2a \end{aligned}$

In conclusion:

$g(x + a) - g(x) = 10ax + 5a^2 + 2a$

3 0

2 years ago