Linear Functions Intercepts Slope Rate of Change

What does "rate of change" mean?

• Slope

• y-intercept

• x-intercept

• roots

Which of the following are ways to find the rate of change?

• change in y over change in x

• rise over run

• subtract y coordinates over subtract x coordinates

• all of the above

78% of students got this question right.

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What does the rate of change represent?

• The population increased 5,700 every year

• The initial population was 193,000

• The population decreased 5,700 every year

• The population increased 193,000 every year

Rate of change means...............................

• x-intercept

• y-intercept

• Slope

• Greater than

• Standard form

Which line appears to have an x-intercept of -5 and a y-intercept of 3?

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Miss Collins runs 13 miles in 2 hours. Assume the number of miles she runs varies directly with time. What equation represents this situation?

55% of students got this question right.

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What is a y-intercept?

• The value of y when x is zero

• The value of x when y is zero

• Slope

• where a line intersects the x-axis

Identify the following as vertical, horizontal or neither

A line that has a slope of zero

• Vertical

• Horizontal

• Neither