Ch 4 Quiz Extra Practice (4.2 & 4.3)

What is the point-slope form of an equation?

• y - y1 = m(x - x1)

• y = mx + b

• y = mx

• y = x + b

How do you convert an equation to standard form?

• Combine like terms on both sides of the equation

• Divide both sides of the equation by a constant

• Rearrange the equation to have all variables on one side and the constant term on the other side in the form Ax + By = C.

• Multiply both sides of the equation by a constant

What is the slope-intercept form of an equation?

• y = mx + b

• y = mx^2 + b

• y = mx - b

• y = ax + b

Determine if the given lines are parallel, perpendicular or neither.

y = 4x + 3

4x + y = 3

• Parallel

• Perpendicular

• Neither

• Not enough information

Determine if the lines are parallel, perpendicular or neither.

3x - 9y = 9

3y = x + 12

• Parallel

• Perpendicular

• Neither

• Not enough information

Write the equation of a line in slope-intercept form with a slope of 2 and passing through the point (3, 5).

• y = 2x - 1

• y = 2x + 3

• y = 2x + 5

• y = 2x + 1

• 3x + 2y = -6

• 3x + 2y = 6

• 3x - 2y = 6

• 3x - 2y = -6

Write the equation of a line in slope-intercept form with a slope of -1/2 and a y-intercept of 4.

• y = -2x + 4

• y = -1/2x - 4

• y = -1/2x + 4

• y = 1/2x + 4

Write the equation of a line in point-slope form, that is parallel to -4x + 2y = 6 and passing through the point (1, -2).

• y + 2 = -2(x -1)

• y + 2 = 2(x - 1)

• y - 2 = -2(x - 1)

• y -2 = 2 (x -1)

Write the equation of a line perpendicular to y = -3x + 2 and passing through the point (-2, 4).

• y = 1/3x + 10/3

• y = 3x + 2

• y = -1/3x + 10/3

• y = -3x + 4