Free Printable Function Applications (y=mx) CORRECTED

1.

The Best Cell Phone company charges a monthly fee of $78 per month. Which equation represents the situation?

a)

$y=\frac{78}{x}$

b)

$y=\frac{x}{78}$

c)

$y=78x$

d)

$xy=78$

2.

The local library charges a $0.35 late fee for each day that a library book is overdue.

Write this situation as an equation in the form y=mx

(no spaces)

(a)

3.

In science class students are tracking plant growth. If a seed grows at a constant rate of 7cm per week, which equation could the class use to graph the plant growth each week?

a)

$x=7y$

b)

$y=7x$

c)

$x=\frac{7}{y}$

d)

$y=\frac{7}{x}$

4.

Quinn is making pancakes. She can make 15 pancakes with 3/4 cup of milk.

Express this as an equation in the form y=mx where the milk is represented by x and the pancakes are represented by y.

Select the slope AND the equation.

a)

$m=20$

b)

$m=\frac{1}{20}$

c)

$y=20x$

d)

$y=\frac{45}{4}x$

e)

$y=\frac{1}{20}x$

5.

Jason earns $18 per hour.

Write an equation in the form y=mx for this situation.

(no spaces)

(a)

6.

On a map, 3 centimeters represents 15 miles.

Express this as an equation in the form y=mx where the centimeters are represented by x and the miles are represented by y.

(HINT - find the slope first)

a)

$y=5x$

b)

$y=\frac{1}{5}x$

c)

$y=45x$

d)

$y=18x$

7.

Varun counted ten seconds between lightening strikes and thunder, which meant the lightening was about 2 miles away.

Which equation could Varun use to graph the time (x) and distance (y)?

a)

$y=5x$

b)

$y=\frac{1}{5}x$

c)

$y=20x$

d)

$y=\frac{1}{20}x$

8.

A washing machine uses 65 gallons of water to wash 5 loads of laundry.

Express this as an equation in the form y=mx where the gallons are represented by y and the loads are represented by x.

Choose both the SLOPE and the equation.

a)

$m=13$

b)

$m=\frac{1}{13}$

c)

$y=13x$

d)

$y=\frac{1}{13}x$

e)

$y=65x$

9.

Jacob bought 4 candy bars for $5.

Write an equation where x represents the candy bars and y represents the cost (money).

HINT - find the slope first!

a)

$y=4x$

b)

$y=5x$

c)

$y=1.25x$

d)

$y=0.8x$

10.

Maria and three friends went to the movies. The tickets cost $8 per person.

Write an equation in the form y=mx for the situation.

(no spaces)

(a)

Function Applications (y=mx) CORRECTED

Total questions: 10

Worksheet time: 16mins

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