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Digiron [165]
3 years ago
8

The price for digital downloads of music is represented by the linear functions f(x) shown on the graph. The price for digital d

ownloads of movies is represented by g(x) = 3x, where x is the number of movies downloaded and g(x) is the total cost in dollars.
Mathematics
1 answer:
OlgaM077 [116]3 years ago
8 0

Answer:

You don't have enough money for 2 downloads

Step-by-step explanation:

<u><em>The complete question is</em></u>

The price for digital downloads of music is represented by the linear function f(x) shown on the graph. The price for digital downloads of movies is represented by g(x) = 3x, where x is the number of movies downloaded and g(x) is the total cost in dollars. Graph of a line with equation f of x equals one half times x plus 2. The x-axis is labeled Number of Songs, and the y-axis is labeled Price in Dollars. You want to make 2 downloads, and you have $2.50. Determine the least expensive option.

You download 2 songs.

You download 2 movies.

You download 1 song and 1 movie.

You don't have enough money for 2 downloads.

we have

f(x)=\frac{1}{2}x+2 ---> price for digital downloads of music

g(x)=3x ---> price for digital downloads of movies

<u><em>Verify all the options</em></u>

case 1) You download 2 songs

Calculate f(2)

For x=2

f(2)=\frac{1}{2}(2)+2=\$3

This option is not possible because

$3>$2.50 (don't have enough money)

case 2) You download 2 movies.

Calculate g(2)

For x=2

g(2)=3(2)=\$6

This option is not possible because

$6>$2.50 (don't have enough money)

case 3) You download 1 song and 1 movie.

Calculate f(1) and g(1)

For x=1

f(1)=\frac{1}{2}(1)+2=\$2.5

g(1)=3(1)=\$3

so

f(1)+g(1)=\$2.5+\$3=\$5.5

This option is not possible because

$5.5>$2.50 (don't have enough money)

case 4) You don't have enough money for 2 downloads

The statement is true

You have only enough money for download 1 song

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