Math 8 MCAP Review

Front

What is the initial value of a linear function?

Back

The initial value of a linear function is the y-intercept, which is the value of the function when the input (x) is zero.

Front

How do you determine which linear function has a greater initial value?

Back

Compare the y-intercepts of the two functions; the function with the higher y-intercept has the greater initial value.

Front

What percentage of students aged 10-13 eat breakfast if it is about 44%?

Back

This means that approximately 44 out of every 100 students in that age group eat breakfast.

Front

What does a negative slope on a graph indicate?

Back

A negative slope indicates that as one variable increases, the other variable decreases, often interpreted as a decrease in speed or value.

Front

If Angle 1 measures 27 degrees, what is the measure of Angle 4 if they are equal?

Back

Angle 4 also measures 27 degrees.

Front

What is a linear function?

Back

A linear function is a function that graphs to a straight line and can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What does the slope of a line represent in a graph?

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable.

Front

How do you calculate the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the y-intercept of a function?

Back

The y-intercept is the point where the graph of the function crosses the y-axis, represented as (0, b) in the equation y = mx + b.

Front

What does it mean if a function is increasing?

Back

A function is increasing if, as the input values increase, the output values also increase.