body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Big Ideas Math Geometry, 2014

BI

Big Ideas Math Geometry, 2014 View details

5. Equations of Parallel and Perpendicular Lines

Continue to next subchapter

Exercise 14 Page 160

What do parallel lines have in common?

Equation: $y = \frac{1}{5} x + \frac{3 7}{5}$
Graph:

Practice makes perfect

When lines are parallel, they have the same slope.

y = \frac{1}{5} (x + 4)

To help us identify the slope of this line, let's first convert it into slope-intercept form,

y = m x + b,

where

m

is the slope and

(0, b)

is the

y -

intercept.

y = \frac{1}{5} (x + 4)

▼

Simplify right-hand side

Distribute $\frac{1}{5}$

y = \frac{1}{5} x + \frac{1}{5} \cdot 4

MoveRightFacToNumOne

$\frac{1}{b} \cdot a = \frac{a}{b}$

y = \frac{1}{5} x + \frac{4}{5}

A shortcut to better grades

Download the app and create a free account to view full content

Subchapter links

Communicate Your Answer p.155

Monitoring Progress p.156-159

Exercises p.160-162