Equation of the Line

Which of the following equations represents a vertical line?

• y = 3x + 2

• y = -5

• x = 2

• y = -2x

What is the equation of the line in slope-intercept form?

What does variable m represent in the slope-intercept form?

• Slope of the line

• Y-intercept of the line

• X-intercept of the line

• None of the above

What is the slope of a horizontal line?

• 0

• 1

• Undefined

• Infinity

What is the b (y-intercept) in the graph?

• ( 5, 0)

• ( 0, 2)

• ( 0, -2)

• (-2, 0)

Which of the following statements is false?

• The graph has negative slope.

• The y-intercept (b) is -2

What is the slope (𝑚) and y – intercept (𝑏) of the equation 𝑦=2𝑥−4?

• 𝑚 =2 𝑎𝑛𝑑 𝑏 = 4

• 𝑚 = 4 𝑎𝑛𝑑 𝑏 = 2

• 𝑚 = 2 𝑎𝑛𝑑 𝑏 = – 4

• 𝑚 = – 4 𝑎𝑛𝑑 𝑏 = 2

Write the equation of a line that passes through the point (1,4) and has a slope of 9.

• y= 9x-4

• 9x - y= -5

• 9x + y=13

• 9x - y= 5

Find the equation of the line with x-intercept of 2 and y-intercept of -4. Express your answer in standard form.

Find the equation of the line whose slope of 3 and contains (3, -8) . Express your answer in standard form.