Linear Functions Review

Front

What does the 4 represent in the equation y=4x+3?

Back

The 4 represents the slope of the line.

Front

What is the slope-intercept form of a linear equation?

Back

Front

What are the two things you need before you write the equation of a line?

Back

You need a point and the slope.

Front

What is the equation of the line that passes through the coordinates (2,7) and (0, 1)?

Back

The equation is y = 3x + 1.

Front

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

Back

Front

What does the y-intercept represent in a linear function?

Back

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

Front

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

Back

A slope of 0 indicates that the line is horizontal.

Front

What is the slope of the line represented by the equation y = -2x + 5?

Back

The slope of the line is -2.

Front

What is the y-intercept of the line represented by the equation y = 4x - 3?

Back

The y-intercept is -3.

Front

If a line passes through the points (1, 2) and (3, 6), what is the slope?

Back

The slope is 2.