y=kx Review

Front

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

Back

The constant of proportionality (k) is the ratio of y to x, representing how much y changes for a unit change in x.

Front

What does the equation y = kx represent?

Back

It represents a direct proportional relationship between y and x, where k is the constant of proportionality.

Front

If y = 7x, what is the constant of proportionality?

Back

The constant of proportionality is 7.

Front

How can you find the constant of proportionality from a table of values?

Back

Divide the value of y by the corresponding value of x for any pair of values.

Front

What is the constant of proportionality if y = 45 when x = 1?

Back

The constant of proportionality is 45.

Front

In the equation y = kx, if k = 2, what is y when x = 5?

Back

y = 2 * 5 = 10.

Front

What is the graphical representation of a proportional relationship?

Back

A straight line that passes through the origin (0,0).

Front

If the constant of proportionality is 40, what is the equation of the proportional relationship?

Back

y = 40x.

Front

What does it mean if the constant of proportionality is greater than 1?

Back

It means that y increases faster than x.

Front

What does it mean if the constant of proportionality is less than 1?

Back

It means that y increases slower than x.