Slope
Formulas
Parallel/Perpendicular
Linear Equations
100

What variable is represented for slope?

slope = M
100

Write out Slope intercept form.

y = Mx + B

100

Parallel lines have the _______ slopes.

Perpendicular have ______ slopes.

Parallel : Same

Perpendicular: Negative Reciprocal

100

What is the equation with a slope of 4 and a y-intercept of -2?

y = 4x - 2

200

What formula do you use to calculate slope?

M = Y2 - Y1 / X2 - X1

200
How do you find slope from two points?

Using slope formula. 

200

Perpendicular lines create what type of angle?

90 degree. Right Angle. 

200
Write a linear equation that passes through point      (4, 3) and is Perpendicular to the line y = 2x - 4 

y = -1/2x + 5

Original slope is = 2 : now use -1/2

y - 3 = -1/2 (x - 4)

300

What is the slope of the line that contains the points (-6, 1) and (4, -4).

M = -1/2

300

What formula would you use if you have one point and slope to create a linear equation?

Point slope formula

Y - Y1 = M ( X - X1)

300

Which equation represents a line parallel to the y-axis? 

A. y = x

B. x = 4

C. y = 4

B. x = 4

300

Write a linear equation that is passing through (2, 3) and Parallel to y= x - 4

y - 3 = 1 (x - 2)

y = 1x +1

400

What is the slope of the line whose equation is 2y=3x+4?

y = 3/2x +2

Slope: 3/2

400

What is the difference between standard form and slope intercept form? 

Standard form is Ax + By = C

Slope intercept form has the correct value of slope and y-intercept. 

400
What line is perpendicular to the line y= -3/5x +1?

A. 3x + 5y = 10

B. 5x - 3y = 27

B. 5x - 3y = 27 ; y= 5/3x - 9

400

Line AB has points (-1, 3) and (1, 5)

Line CD has points (2,3) and (-2,7)

Find the slope and determine if it is parallel or perp.

AB Slope: 1

CD Slope: -1

Perpendicular

500

What is the difference between slope = 0 and slope = undefined? 

Slope=0 --> when slope has a 0 for the numerator in the fraction or when you have x = #

Slope = undefined --> when slope has a 0 as the denominator. or when you have y = #

500

What are the steps to take standard form and put into slope intercept form? 

1. Move the X value to the other side by using the inverse.

2. Write out as -- y = X + B

3. Divide by the value before the Y if necessary. 

4. Reduce.

500

State whether the lines are Parallel or Perpendicular?

5x - y = 4 and y = -1/5x +7

Perpendicular

500

Line AB has points (2, -7) and (2, 3)

Line CD has points (-4, 0) and (-4, -5)

Is this line parallel or perpendicular or neither? 

AB: Slope is undefined.

CD: Slope is undefined. 

Therefore it is parallel

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