Parallel and Perpendicular Lines & Graphing

Create a graph that has a y intercept of 4, and a slope of -1

What is the equation of the line in the form of y=mx+b?

Mathematical Equivalence

ON

The graph of a line is shown. What are the equation and slope of the line? Move the correct answer to each box. Not all answers will be used.

Equation: ​ (a)  

Slope: ​ (b)  

• y = -4
• zero
• y = 4x
• x = -4
• undefined

Identify the equation for each line.

a

b

c

d

e

The lines A to E are all (a)   , because they have the same ​ (b)   .

• parallel
• slope
• perpendicular
• positive
• negative
• reciprocal
• y-intercept

Match each line with its equation

a

b

c

d

e

Perpendicular lines have slopes that are

(a)   of each other. For example, if line A and B are perpendicular and the slope of line A is -1/3, then the slope of line B is ​ (b)   .

• negative reciprocal
• 3
• the same
• reciprocal
• -1/3
• 1/3

Organize these options into the right categories

Groups:

(a) Parallel lines

,

(b) Perpendicular lines

,

(c) Neither parallel nor perpendicular

• R & T

• S & T

• R & S

• Q & U

• S & U

Graph a line that is parallel to the line shown and goes through point (2, 2).