Graphing Linear Functions Review

Front

What is the slope in the equation: y = 4x + 3?

Back

The slope is 4.

Front

Find the value of y when x = 2 for the equation y = -2x + 5.

Back

y = 1.

Front

When graphing, what do you do after you graph your y-intercept?

Back

Find slope and start with your rise (up or down) then to run (left or right).

Front

When you graph a line using slope-intercept form (y = mx + b), you graph the ___________ first and then use the ___________ to find the second point.

Back

y-intercept; slope.

Front

Which of these represents slope-intercept form of a linear equation?

Back

y = mx + b.

Front

What does 'm' represent in the slope-intercept form y = mx + b?

Back

The slope of the line.

Front

What does 'b' represent in the slope-intercept form y = mx + b?

Back

The y-intercept of the line.

Front

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

Back

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

Front

What is the y-intercept of the line represented by the equation y = 3x + 2?

Back

The y-intercept is 2.

Front

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

Back

The line is horizontal.