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SAT Math: Rearranging Given Information to Form a Quadratic Equation 1 Views
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Description:
Which of the following equivalent equations best reveals the possible locations on the roller coaster where boarding or disembarkation takes place?
Transcript
- 00:00
Yeah Whoa Okay Mash bumpers Here's the ugly equation One
- 00:06
is negative X Y and Z Xavier Next Money forty
- 00:08
five The equation above can be graft on the X
- 00:10
Y plane represent the structure of one part of a
- 00:13
roller coaster track The height at which passengers boarding disembark
Full Transcript
- 00:16
is defined to be why Zero All right The question
- 00:19
here which of the following equivalent equations best reveals the
- 00:23
possible locations on the roller coaster where boarding or AH
- 00:27
disembarking or vomiting takes place after the ride is finished
- 00:35
Like Southwest Airlines You know you got the A and
- 00:37
the B and the losers and see weigh them All
- 00:40
right What are we looking for here Nothing Absolutely nothing
- 00:43
Say it again before you let out a whoop and
- 00:45
move onto the next problem here Us out The nothing
- 00:48
we need to find here are the zeros i e
- 00:51
The ex intercepts because that's the height at which passengers
- 00:54
board right You're going to board on ground level and
- 00:56
then you take off So we have a quadratic tried
- 01:00
and true method going forward here Factor it If we
- 01:02
can and set the whole thing equal to zero we'll
- 01:05
just skip that last step because well we want the
- 01:07
equation with why intact That makes the X intercepts stand
- 01:12
out like you know my grandma Metallica Okay well there's
- 01:17
equation and then they were going to factor it out
- 01:19
So we're gonna pull out a negative x here and
- 01:21
next there and then a three Tempting to fifteen actually
- 01:23
See the naked forty five to the equation has a
- 01:26
clean factored form available here And it's why equals negative
- 01:31
X plus three and Acts minus 15 and answers a 00:01:35.67 --> [endTime] no roller coaster there That was a easy ride
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