GED Math: Graphs and Functions Drill 2, Problem 2. Lines A and B are...what?

GED Math | Graphs and Functions |

Geometry | Parallel and Perpendicular Lines |

Parallel and Perpendicular Lines | Equations and Slopes of Lines Perpendicular Lines |

Skill Area 4 | Graphs and Functions (Algebraic) |

the equation of line b is x plus three Why

equal six lines a and b are what Well the

dropdown thing here and gives us three options wants a

beer parallel perpendicular or the same Well we suppose they

could be the same line Although if that's true line

b has definitely had some work done Okay down to

business Figuring out one lines relation to another is all

about determining the slope And so we need to get

the slopes out of both lines and see how they

all shake out Both lines are written in the form

of a x plus B why equal c So we

can use the slope formula Slope equals negative A over

b to find what we need Well for line eh

We plug in three for a and negative one for

be Could get a slope of three Yeah because those

negative signs cancel out so that look the line be

We plug in one for a and three for b

to get a slope of negative one third like when

it's negative It slopes that way with positive it's like

that got it And because these two numbers are negative

reciprocal sze Well we can be sure we're looking at

a couple of perpendicular lines here We certainly hope those

two things work out and be ashamed They both reached 00:01:36.328 --> [endTime] their boiling point