Linear Functions Quiz

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

• y = ax + b

• y = mx + b

• y = mx^2 + b

• y = mx - b

How do you graph a linear function?

• Plot one point and connect it with a curved line.

• Plot at least two points and connect them with a straight line.

• Use a ruler to draw a wavy line.

• Draw a zigzag line without any points.

What is the slope of the line y = 3x + 2?

• 3

• -3

• 5

• 2

What is the y-intercept of the line y = -2x + 5?

• 2

• 5

• 0

• -2

Write the equation of a line with a slope of 2 and a y-intercept of -3.

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Find the slope of the line passing through the points (2, 5) and (4, 9).

• 4

• 2

• 5

• 3

Find the y-intercept of the line with a slope of -3 and passing through the point (0, 7).

• 21

• 0

• -3

• 7

Write the equation of a line with a slope of 1/2 and a y-intercept of 3.

• y = (1/2)x + 3

• y = (1/2)x + 2

• y = (1/2)x - 3

• y = 2x + 3

Graph the line y = 2x - 1.

• The line y = 2x - 1 is a vertical line.

• The line y = 2x - 1 has a y-intercept of 2.

• The line y = 2x - 1 is a parabola.

• The line y = 2x - 1 can be graphed as a straight line with a slope of 2 and a y-intercept of -1.

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

• 3

• -4

• 0

• 4