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4 years ago

Which graph represents a function??

Mathematics

1 answer:

SSSSS [86.1K]4 years ago

6 0

Graph D, because no x-value repeats and it passes the vertical line test.

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Can you assist me? Thanks.

MrMuchimi

It’s been a while since I’ve done geometry, but I think this is right.
Because we are dealing with a rhombus: angles X and A are the same, so we use this to solve for x like any other algebraic expression.
After we have found x (24), we can also apply the knowledge that since angles X and M are complementary they will form a 180° line when added.
Substitute the expression for angle X with the solved for expression and subtract it from 180°. And bam! Angle M

5 0

3 years ago

. Anna gets paid $8.75/hour working as a barista at Coffee Break. Her boss pays her

dedylja [7]

Explanation:

Anna gets paid $8.75/hour working as a barista.

She gets paid $9.00/hour for creating weekly advertisement signs.

In total she works 25 hours a week.

Let 'x' represent the number of hours that she works as a barista, then $25-x$ would represent the number of hours she works to create signs.

A. We need to write a function h(x) that represents the amount of money that Anna earns working as a barista.

Since she is earning $8.75 per hour and she works as a barista for 'x' hours a week so the function is:

$h(x)=8.75\times x=8.75x$

$h(x)=8.75x$

B. We need to write a function f(x) to represent the hours Anna works creating the signs.

Since, in total she works for 25 hours a week so the function to represent the number of hours she work to create signs can be given by:

$f(x)=(25-x)$

C. If 's' represents the number of hours that Anna works creating signs, we need to create a function g(s) that represents her earning creating signs.

So the number of hours Anna works creating signs for the coffee break is $s$ , she gets paid $9.00 an hour for creating signs, so:

$g(s)=9\times s=9s$

$g(s)=9s$

D. We need to finf a composite function $g(f(x))$ , to find the desired function we need to plug value of f(x) in the function g(s):

$g(f(x))=9s=9(f(x))=9(25-x)=225-9x$

$g(f(x))=225-9x$

The composite function g(f(x)) represents Anna's earnings while working just to create signs for the Coffee break.

E. To represent Anna's total earnings the functions that can be combined are h(x) and g(f(x)) because h(x) represents Anna's earnings while working as a barista and g(f(x)) represents Anna's earnings while she creates signs for the coffee break.

The function to represent Anna's total earnings can be given as:

$T(x)=h(x)+g(f(x))=8.50x+225-9x$

where we must keep in mind that 'x' represents the number of hours she spent working as a barista in a 'week'.

5 0

3 years ago

Read 2 more answers

Solve equation a+6a-9=30

ra1l [238]

A=5 4/7 or 5.57142857143
I cannot be simplified any more

8 0

3 years ago

Benny brought five new baseball trading cards to add to his collection. the next day his dog ate half of his collection. there a

VMariaS [17]

Benny started with 55 five cards. In order for his dog to have eaten half his cards and end up with 30 cards, that would mean he had 60 cards. Mind you, he had bought 5 more the day before his dog ate them. I hope that makes sense

7 0

3 years ago

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Four deep-sea divers reported the depths they went below sea level on their last dive. Which depth is the farthest from sea leve

Andreas93 [3]

Answer: C. -82

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers