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zhuklara [117]
3 years ago
8

I will give you brainliest, I just need help. Please.

Mathematics
1 answer:
arlik [135]3 years ago
6 0

h and k are just arbitrarily choosen names for these functions, and (x) is the variable we do all the calculations with

example: (x) can be some function, while d(x)= 2*f(x) always doubles what f(x) would give you. and in order to talk about the new function we give it a new name.

----------------------

let's have a look into it.

and with a look, I mean a look (screenshot 1)

k(x) basically takes the other equation, doubles its values, but also flips the sign (hence -2*h(x)), and then adds 3 (shifting everything 3 units up)

k(x) is a <em><u>vertical stretch</u></em> [note thatthe zero-pounts stay the same] by a factor of <em><u>-2</u></em>, <em><u>translated up</u></em> [you typed translated right twice, but the +3 in the new equation is safely putting everything 3 units higher].

to be honest, I can't get the meaning of some of the blanks and the options you mentioned don't seem to fit well.

I hope I gave you enough insight to do do the quiz anyways.

pls let me no if you solved it or if you need further explanations.

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19. A computer store used a markup rate of 120%. Find the selling price of a computer game that cost the
Scilla [17]

Answer:

The computer game would sell for $30.

Step-by-step explanation:

25 (1.20) = 30

3 0
3 years ago
What is a correct equation for the line passing through the point (-2,1) and having slope m=1/2
frez [133]

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

We ahve the slope m = 1/2 and the point (-2, 1). Substitute:

y-1=\dfrac{1}{2}(x-(-2))

y-1=\dfrac{1}{2}(x+2) - point-slope form

Covert to the slope-intercept form (y = mx + b):

y-1=\dfrac{1}{2}(x+2)          <em>use the distributive property</em>

y-1=\dfrac{1}{2}x+1          <em>add 1 to both sides</em>

y=\dfrac{1}{2}x+2   - slope-intercept form

Convert to the standard form (Ax + By = C):

y=\dfrac{1}{2}x+2     <em>multiply both sides by 2</em>

2y=x+4        <em>subtract x from both sides</em>

-x+2y=4         <em>change the signs</em>

x-2y=-4   -  standard form

Convert to the general form (Ax+By+C=0):

x-2y=-4        <em>add 4 to both sides</em>

x-2y+4=0   - general form

5 0
4 years ago
State the domain of the function.
boyakko [2]
Hi there! The domain of a function refers to the values that can be validly input for x. In laymen's terms, domain is the x-values that exist on a graph of the equation.

If we were to plug in y=-2x+5 into a calculator that shows an infinite graph, we would see that the line of the equation would extend both ways infinitely! This means that all real numbers can be inputs for x, because for every x value that exists there is a corresponding y value.

This means that D. All real numbers, is your answer.

Hope it helps! :)
6 0
4 years ago
What is the slope of the line through -2, one and two, -5 in the center of X, Y coordinate plane
kkurt [141]

Answer:

m = -3/2

Step-by-step explanation:

Points: (-2,1) and (2,-5)

Slope is change in y over change in x,

(-5-1)/(2-(-2)) = -6/4 = -3/2

Hope this helps!

4 0
3 years ago
HELP!!! I NEED THIS DONE ASAP!
GarryVolchara [31]
20 and 7 Because 4x5 = 20
6 0
3 years ago
Read 2 more answers
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