Exploring A2 Mon Linear Review Functions

What is the formula for finding the slope of a line given two points?

• y1 - y2 / x1 - x2

• x1 - x2 / y1 - y2

• y2 - y1 / x2 - x1

• x2 - x1 / y2 - y1

If a line passes through the points (9, 2) and (-11, 6), what is its slope?

• -5

• 5

• -1/5

• 1/5

Which form is used to write the equation of a line given a point and a slope?

• Slope-intercept form

• Standard form

• Point-slope form

• General form

Given a point (3, -2) and a slope of 6, what is the equation of the line?

• y = 6x - 20

• y = 6x + 20

• y = -6x + 20

• y = -6x - 20

What is the slope of a line parallel to y = 2x + 1?

• -1/2

• -2

• 2

• 1/2

What is the equation of a line parallel to y = 2x + 1 and passing through (14, -10)?

• y = 2x + 18

• y = 2x - 18

• y = -2x + 18

• y = -2x - 18

How do you find the slope of a line perpendicular to another line?

• Take the reciprocal and change the sign

• Take the reciprocal

• Change the sign

• Double the slope

What is the slope of a line perpendicular to y = -1/3x + 5?

• 3

• -1/3

• 1/3

• -3

What is the y-intercept of the line y = -1/3x + 5?

• -5

• -1/3

• 5

• 1/3

How do you convert from point-slope form to standard form?

• Divide both sides by the slope

• Multiply both sides by the slope

• Isolate x and simplify

• Isolate y and simplify