constant of proportionality practice

Front

The constant of proportionality can be found by finding the __________  _____________.

Back

unit rate

Front

What is the constant of proportionality when y = 2x?

Back

2

Front

What is the constant of proportionality when y = 5x?

Back

5

Front

What is the constant of proportionality represented in the equation y = kx?

Back

k

Front

What makes a graph proportional?

Back

Straight line and the line goes through the origin.

Front

If the constant of proportionality is 3, what is the value of y when x = 4?

Back

y = 12 (y = 3 * 4)

Front

If the constant of proportionality is 1/2, what is the value of y when x = 10?

Back

y = 5 (y = 1/2 * 10)

Front

In a proportional relationship, if x doubles, what happens to y?

Back

y also doubles.

Front

What is the unit rate if 10 apples cost $2?

Back

$0.20 per apple.

Front

If a graph passes through the origin and is a straight line, what can be said about the relationship?

Back

It is a proportional relationship.