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Transformations and Symmetry Videos 14 videos

SAT Math 11.2 Geometry and Measurement
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SAT Math 11.2 Geometry and Measurement

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TSI Math: Which is Not a Line of Symmetry for This Graph? 1 Views


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Description:

Which of the following lines is NOT a line of symmetry for the given shape above?


Transcript

00:02

Okay sy mash bumpers More graffin for uh for you

00:05

to do here and got a little diamond shaped thing

00:08

either Our which of the following lines is not a

00:11

line of symmetry for the given shape above What line

00:18

of symmetry is a line that divides a shape into

00:20

two mirror image halves Hey we're in luck The given

00:23

shape has several lines of symmetry with shapes cut in

00:26

half by a vertical line passing through the origin as

00:29

well as a horizontal line right They're passing through the

00:31

origin and this vertical line has equation x equals zero

00:35

right no matter what Why is x zero and the

00:38

horizontal line has the equation Why is zero always forever

00:41

Never well the shape could also be cut in half

00:44

by a forty five degree angle line going up right

00:47

there read y equals x or up and left at

00:51

why equals negative x So we've seen that every answer

00:55

choice except for why equals one is a line of

00:58

symmetry so that's the odd men out And if we

01:00

graft that horizontal line why equals one While we'd see

01:04

that it doesn't divide the shape into two symmetrical halves

01:08

it was more like you know someone just had an

01:10

accident with their carving knife or something All right so 00:01:13.162 --> [endTime] that's it we popped

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