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3 years ago

Find the value of f(7) for the function f(x) = -3x + 6

Mathematics

1 answer:

Vaselesa [24]3 years ago

4 0

Answer:

D. -15

Step-by-step explanation:

f(x)=7

f(x) = -3x + 6

Then substitute x for 7 and solve linearly.

-3(7)+6

-21+6

=-15

The answer is D

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How to solve -5 + 13y = -7

zubka84 [21]

Answer:

y = -2/13

Step-by-step explanation:

-5 + 13y = -7

Add 5 to each side

-5+5 + 13y = -7+5

13y = -2

Divide by 13

13y/13 = -2/13

y = -2/13

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3 years ago

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Given the points (-4,8)and(6,-12)

MissTica

Answer:

$midpoint = ( \frac{ - 4 + 6}{2} , \: \frac{ - 12 + 8}{2} ) \\ = (1, \: - 2)$

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2 years ago

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SashulF [63]

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3 years ago

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In 2009 the number of vehicle sales in the United States was 10,002 thousand and in 2013 it was 17,884 thousand.a. [3 pts] Deter

anygoal [31]

Answer:

1970.5 thousand

Step-by-step explanation:

Given

Vehicle sales in 2009 = 10,002 thousand

Vehicle sales in 2013 = 17,884 thousand

Required

Determine the average rate of change;

From the given parameters, it can be seen that the number of vehicles is a function of year

Let x represent the years and y represent the number of vehicles;

Such that;

$x_1 = 2009;\ y_1 = 10,002$

$x_2 = 2013;\ y_2 = 17,884$

The rate of change is calculate as follows;

$m = \frac{y_1 - y_2}{x_1 - x_2}$

$m = \frac{10002 - 17884}{2009 - 2013}$

$m = \frac{-7882}{-4}$

$m = 1970.5$

Hence, the average rate of change is 1970.5 thousand

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3 years ago

Whats the slope of (2,-5),(-6,5)

Makovka662 [10]

The slope of the line with the points (2,-5) and (-6,5) is 5/-4 (or 10/-8).

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2 years ago