Writing Linear Equations from Graphs

Which of the following is NOT a type of slope for linear graphs?

• Positive

• Negative

• Undefined

• Curved

What is the first step in writing the equation of a line with a positive slope?

• Find the slope

• Find the y-intercept

• Determine the x-intercept

• Calculate the run

If a line crosses the y-axis at y = 1, what is the value of b in the equation y = mx + b?

• 3

• 0

• 2

• 1

How do you determine the slope of a line with a positive slope?

• Calculate the product of rise and run

• Find the x-intercept

• Count the rise and run

• Measure the angle with the x-axis

What is the slope of a line that goes down two units and to the right one unit?

• -1

• -2

• 1

• 2

If the y-intercept of a line with a negative slope is 5, what is the equation of the line?

• y = -2x + 5

• y = 5x - 2

• y = 2x + 5

• y = -5x + 2

What is the slope of a line that has no rise and only moves horizontally?

• Positive

• Negative

• Zero

• Undefined

What does the equation y = 5 represent?

• A line with a positive slope

• A horizontal line

• A line with a negative slope

• A vertical line

Why is the slope of a vertical line considered undefined?

• Because the rise is zero

• Because the run is zero

• Because it crosses the y-axis

• Because it crosses the x-axis

What is the equation of a line that crosses the x-axis at -4?

• y = 4

• x = -4

• y = -4

• x = 4