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3 years ago

15

It costs $100 to rent a bowling alley, plus $4 per person. The cost for any number (n) of people can be found using the expressi

on 100 + 4n. The cost for 15 people equals $_____. (Input whole number only)

2 answers:

AfilCa [17]3 years ago

7 0

15*4+100

15+15+15+15 = 60

60+100 =

$160

schepotkina [342]3 years ago

4 0

Answer:

160

Step-by-step explanation:

100 + 4 (15)

100 + 60

160

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2 years ago

This equation represents an exponential function that passes through the point (2, 80).

miss Akunina [59]

we know that

If the point belongs to the graph, then the point must satisfy the equation

we will proceed to verify each case

<u>case A.)</u> $f(x)=4(x^{5})$

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Verify if the point satisfy the equation

For $x=2$ find the value of y in the equation and compare with the y-coordinate of the point

$f(2)=4(2^{5})$

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the equation $f(x)=4(x^{5})$ not passes through the point $(2,80)$

<u>case B.)</u> $f(x)=5(x^{4})$

The point is $(2,80)$

Verify if the point satisfy the equation

For $x=2$ find the value of y in the equation and compare with the y-coordinate of the point

$f(2)=5(2^{4})$

$f(2)=80$

$80=80$

therefore

the equation $f(x)=5(x^{4})$ passes through the point $(2,80)$

<u>case C.)</u> $f(x)=4(5^{x})$

The point is $(2,80)$

Verify if the point satisfy the equation

For $x=2$ find the value of y in the equation and compare with the y-coordinate of the point

$f(2)=4(5^{2})$

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$100\neq 80$

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the equation $f(x)=4(5^{x})$ not passes through the point $(2,80)$

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The point is $(2,80)$

Verify if the point satisfy the equation

For $x=2$ find the value of y in the equation and compare with the y-coordinate of the point

$f(2)=5(4^{2})$

$f(2)=80$

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<u>the answer is</u>

$f(x)=5(x^{4})$

$f(x)=5(4^{x})$

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