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bogdanovich [222]
2 years ago
6

What is the range of the function f(x) = 4x + 9, given the domain D = {-4, -2, 0, 2}?

Mathematics
1 answer:
anyanavicka [17]2 years ago
3 0

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

f( - 4) = 4( - 4) + 9 =  - 7

_________________________________

f( - 2) = 4( - 2) + 9 = 1

_________________________________

f(0) = 4(0) + 9 = 9

_________________________________

f(2) = 4(2) + 9 = 17

_________________________________

Thus ;

R = { - 7 , 1 , 9 , 17 }

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

The correct answer is (( D )) .

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

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5 0
2 years ago
Which choices are solutions to the following equations x^2+8x-2=18
Olin [163]

Answer:

-4 ± 2√6

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Here the quadratic coefficients are a = 1, b = 8 and c = -20 and so the discriminant is b^2 - 4ac, or 8^2 - 4(1)(-20), or 96.

Because the discriminant is positive, we know that this quadratic has two different real roots.  These roots are:

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x = -------------------------

                 2a

which in this case comes out to:

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             2                        2

4 0
2 years ago
Can someone help me with this I am not the best at math
mamaluj [8]

4.)

A.)

P = 140

i = 0.05

B.)

140(1.05)^t

C.)

0 = 140

10 = 228.05

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A.) The y-intercept is how much the cell phone cost to purchase.

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3 years ago
Write the point-slope form of an equation of the line through the points (-1, 4) and (-2, 2)
jasenka [17]

Answer:

<h3>The answer is option B</h3>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find an equation of a line given two points first find the slope / gradient

Slope of the line using points (-1,4) and (-2,2) is

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So the equation of the line using point (-1,4) is

<h3>y - 4 = 2( x + 1)</h3>

Hope this helps you

4 0
3 years ago
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