Writing Linear Equations from Graphs

What is the general form of the slope-intercept equation?

• y = mx - b

• y = ax^2 + bx + c

• y = mx + b

• y = x + b

In the slope-intercept form, what does the 'm' represent?

• X-intercept

• Constant term

• Y-intercept

• Slope

For a line passing through the origin, what is the y-intercept?

• 0

• Undefined

• 1

• -1

If a line has a rise of 3 and a run of 5, what is its slope?

• 5

• 3/5

• 5/3

• 3

What is the equation of a horizontal line that crosses the y-axis at -3?

• y = -3x

• y = 0x - 3

• y = -3

• y = x - 3

What is the slope of a horizontal line?

• 0

• Undefined

• 1

• -1

For a line with a negative slope, if the rise is 2 and the run is -1, what is the slope?

• 1/2

• -1/2

• 2

• -2

What is the equation of a line with a slope of -2 and a y-intercept of 0?

• y = -2

• y = -2x

• y = -2x + 0

• y = 0x - 2

What is the equation of a horizontal line that crosses the y-axis at 1?

• y = x + 1

• y = 0x + 1

• y = 1x

• y = 1

What should you do if the y-intercept is zero when writing the equation of a line?

• Include the zero in the equation

• Exclude the zero from the equation

• Write zero as the y-intercept

• None of the above