Comparing Functions

Front

What is the y-intercept in the equation y = -2x + 5?

Back

The y-intercept is 5.

Front

Which kitten grows fastest? What is its rate of change (slope)?

Back

Kitten A with a rate of change of 4.

Front

Find the slope from the table: (x1, y1) = (1, 2), (x2, y2) = (3, 10).

Back

The slope is 4.

Front

How much will you pay Store A per week for a phone?

Back

You will pay $25 per week.

Front

Find the slope in the equation y = 2x + 3.

Back

The slope is 2.

Front

What does the slope of a line represent?

Back

The slope represents the rate of change of y with respect to x.

Front

What is the formula for calculating slope?

Back

Slope (m) = (y2 - y1) / (x2 - x1).

Front

If a line has a slope of 0, what does that indicate?

Back

It indicates that the line is horizontal.

Front

If a line has a negative slope, what does that indicate about the relationship between x and y?

Back

As x increases, y decreases.

Front

What is the meaning of a positive slope?

Back

A positive slope indicates that as x increases, y also increases.