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3 years ago

F(x) = 3x^2 - 4x Find f(2).

Mathematics

1 answer:

3241004551 [841]3 years ago

3 0

Answer:

f(2)= 3(2)^2 - 4(2)

3(4) - 8

12 - 8 = 4

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Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost functio

lbvjy [14]

c(x) = 2.00 + 0.50x would be the best answer. Think about it. If you pay $2.00 for something and each night she keeps the movie after that payment she has to pay $0.50, this equation would work the best. X represents the number of nights she has kept the movie. Keep on working hard!

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4 years ago

examine the graph below. select the solutions to the graph from the following points. select three that apply.

vova2212 [387]

Answer:

Options (1), (2), (3)

Step-by-step explanation:

Let the equation of the line is,

y = mx + b

Here m = slope of the line

b = y-intercept

Given line on the graph is passing through two points (-3, 0) and (0, 1).

Slope of this line will be,

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

= $\frac{1-0}{0+3}$

= $\frac{1}{3}$

y-intercept of the line 'b' = 1

Equation of the line will be,

y = $\frac{1}{3}x+1$

If the points given in the options satisfy the equation, they will be the solution of the line.

Option (1),

For (3, 2),

2 = $\frac{3}{3}+1$

2 = 2

True.

(3, 2) is the solution.

Option (2)

For (21, 8),

8 = $\frac{21}{3}+1$

8 = 8

True.

(21, 8) is the solution.

Option(3)

For (-15, -4),

-4 = $\frac{-15}{3}+1$

-4 = -4

True.

(-15, -4) is the solution.

Option (4)

For (12, 9)

9 = $\frac{12}{3}+1$

9 = 5

False

(12, 9) is not the solution.

Option (5)

For (-6, 1)

1 = $\frac{-6}{3}+1$

1 = -1

False

(-6, 1) is not the solution.

Therefore, Options (1), (2), (3) are the solutions.

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3 years ago

Evaluate the function f(x) = 2x + 2, when x = -1 W.4 X. 3 Y. O Z -4

madreJ [45]

Hello.

Simply plug -1 into 2x+2.

f(x) = 2x +2

f(-1) = 2 (-1) +2

f (-1)= -2+2

f(-1) = 0

Hope this helped.

**************************

Disclaimer:

Always double check your answer with a reliable source, as mistakes can be made.

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4 years ago

Which expression is equivalent to 9^5

pochemuha

The expression that is equivalent to 9^5 is 3^2

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4 years ago

Yoshi multiplied -6.2 by -0.14. His result was -0.868. Which statement likely describes the error he made in his calculation?

Digiron [165]

Step-by-step explanation:

The answer is letter B. Negative and Negative is Positive.

3 0

3 years ago