GED Math 3.4 Graphs and Functions

GED Math: Graphs and Functions Drill 3, Problem 4. Which of the following statements must be true?

GED MathGraphs and Functions
LanguageEnglish Language
Mathematical PracticeAbstracting Problems
Parallel and Perpendicular LinesEquations and Slopes of Lines

Transcript

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and s M stands for the slope of m and

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s and stands for the slope of end in which

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of the following statements must be true and hear the

00:28

potential answers Seven his life Okay so what's this question

00:35

asking Well we're given a graph featuring a triangle that

00:38

looks badly in need of its morning cup of coffee

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way And we need to figure out what would happen

00:44

if we multiplied the slopes of the three sides of

00:46

the triangle together They're no given numbers here Missed a

00:52

few letters So what gives Well let's look at the

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other information that we are giving problems Says this is

00:58

a right triangle And yet there's a little right triangle

01:02

symbols So we know the two legs of the triangle

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side in inside em are perpendicular ninety degrees member Okay

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so what do we know about perpendicular lines Slope wise

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Well hopefully remember that the slopes of the perpendicular lines

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are always negative Reciprocal sze in other words multiply the

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slopes of any two perpendicular lines and you get negative

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one like if the slopes or three and negative a

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third toe All three terms negative Third is negative one

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and it'll be the same with any too negative reciprocal

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ls he decide to plug in there lose us with

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just negative one time The last side side l were

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looking over The answer choices It makes sense that sea

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would work because negative onetime side l will always equal

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negative side L so yeah we've got her answer and

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our triangle friend has finally got his coffee All is 00:01:54.633 --> [endTime] right in the world