2 years ago

Look at the graph below. Is it a function or not a function? Explain your reasoning.

Mathematics

1 answer:

navik [9.2K]2 years ago

6 0

Answer:

not a function because it dont cross the axis

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locksmith larry charges $90 for a house cal plus $20 per hour. Locksmith Barry charges $50 for a house call plus $30 per house.

nadya68 [22]

Answer:

4 hours

Step-by-step explanation:

Equations :

Larry : y = 20x + 90

Barry : y = 30x + 50

Equate both to find the number of hours at which they both charge the same :

20x + 90 = 30x + 50
30x - 20x = 90 - 50
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2 years ago

The monthly utility bills in a city have a mean of $70 and a standard deviation of $8. Find the s-scores that correspond to util

Ulleksa [173]

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3 years ago

Read 2 more answers

Let f(x)=3x-6. Is f one-to-one? If it is find f^-1, if not explain why.

beks73 [17]

Answer: Yes, $\bold{f^{-1}(x)=\dfrac{x+6}{3}}$

Step-by-step explanation:

f(x) = 3x - 6 is a line so it is a function because

it passes the vertical line test

and the horizontal line test

To find the inverse, swap the x's and y's and solve for y

$y=3x-6\\\\\\\text{Swap the x's and y's:}\qquad x=3y-6\\\\\text{Add 6 to both sides:}\qquad x+6=3y\\\\\text{Divide both sides by 3:}\qquad \dfrac{x+6}{3}=y$

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3 years ago

Look at the graph below. Is it a function or not a function? Explain your reasoning.​

Look at the graph below. Is it a function or not a function? Explain your reasoning.