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2 years ago

If a line crosses the y-axis at (0, -4) and has a slope of -2, what is the equation of the line

Mathematics

1 answer:

padilas [110]2 years ago

3 0

-2x-4

slope always goes first and behind that goes x...

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2 years ago

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Between x=2 and x=3, which function has a greater average rate of change than f(x)=2^x has?

maxonik [38]

Answer: f(3)

Step-by-step explanation:

First find the formula for the rate of change by taking the derivative of 2^x. Let f(x) equal some hypothetical y-value, then take the natural log of both sides.

$y=2^x\\\ln(y)=x \ln(2)$

Implicitly differentiate the left side and take the derivative of the right side

$\frac{y'}{y} =\ln(2)$

Multiply both sides by 'y' which was defined as 2^x

$y'=\ln(2)*2^x$

Plug in x = 2 and x = 3 to see which slope is larger

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2 years ago

The line passing through which two points is parallel to the line x - 2y = 16?

Naddika [18.5K]

Answer:

E) -4,7 and -2,8

Step-by-step explanation:

parallel lines have same slope

x - 2y = 16

y = 1/2 x -8 slope: 1/2

E. slope = Δy / Δx = (8-7) / (-2 - -4) = 1/2

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2 years ago

The 8 red markers in a package account for 4% of all markers in the package. How many markers are in the package?

Vlad [161]

Answer:

192 markers

Step-by-step explanation:

if 8 = 4% then 2=1%

so we can assume there are 200markers in the package.

8-200= 192 markers

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