DCA 2 REVIEW

Front

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

Back

The y-intercept is 5.

Front

What is the definition of a y-intercept?

Back

The y-intercept is the point where a line crosses the y-axis.

Front

Identify the y-intercept in the equation y=0.5x-4.

Back

The y-intercept is -4.

Front

What is the unit rate for rainfall if it falls 6 cm in 3 hours?

Back

The unit rate is 2 cm per hour.

Front

Which equation represents the total cost of buying n items at $5 each?

Back

y=5n.

Front

In the coordinate (4,9), what is the y-coordinate?

Back

The y-coordinate is 9.

Front

What does the slope of a line represent?

Back

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

Front

If a line has a slope of 3, what does this mean?

Back

For every 1 unit increase in x, y increases by 3 units.

Front

What is the formula for finding the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the meaning of the term 'unit rate'?

Back

A unit rate is a comparison of two different quantities when they are combined together.