3 years ago

What is the product of 4r^2-3 and 2r? Show all work.

Mathematics

1 answer:

aksik [14]3 years ago

5 0

Answer:

8 $r^{3}$ - 6r

Step-by-step explanation:

2r(4r^2-3)

= 8 $r^{3}$ - 6r

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4 years ago

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Tema [17]

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3 years ago

The equation of the line that goes through the points ( − 3 , − 9 ) and ( − 6 , − 3 ) can be written in the form y = m x + b

ivolga24 [154]

Answer:

$y=-2x-15$

Step-by-step explanation:

$y=mx+b$ .

m is the slope of the line. To find it we can do $\frac{dy}{dx}$ which is the difference between the y-coordinates divided by the difference between the x-coordinates.

So: $\frac{dy}{dx} =\frac{-9-(-3)}{-3-(-6)} =\frac{-6}{3} =-2$ . Now we have the slope, let's input a set of coordinates into the equation so that we can find the constant $b$ .