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SAT Math: Which x-value Solves the System of Equations? 1 Views
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Description:
Which of the following x-values provides a solution to this system of equations?
Transcript
- 00:00
Yeah Whoa Okay As a team Asham Uppers Well got
- 00:06
another set of weird equations here Why minus taxes native
- 00:08
six And why Plus sixty six x squared minus five
- 00:11
XO I smell quadratic Which of the following X values
- 00:14
provides a solution to this system of equations Interesting Well
Full Transcript
- 00:20
just like furniture to retail outlet store Sometimes we need
- 00:22
to rearrange a system of equations This time getting wide
- 00:25
by itself in both equations will really liven up the
- 00:28
place So Y equals two x minus six and y
- 00:31
equals X squared minus five Acts minus 66 is what
- 00:34
will d'oh So now we set the wise equal to
- 00:36
each other and then make one side equal to zero
- 00:39
so seldom equal We got this thing over here at
- 00:42
six I mean who knew him And then we're going
- 00:44
to do some simplifying here by subtracting too except from
- 00:47
this side It gets negative seven next year and we'll
- 00:49
add six there So that gets a sixty right there
- 00:51
Yeah Then we factor it We've got what in what
- 00:54
twelve times five is sixty and yes Oh that works
- 00:57
so x minus twelve times X plus five Those have
- 01:01
to be said to zero So what makes this thing
- 01:04
zeros Well we got a twelve in a negative five
- 01:07
there as potential excess The solutions to this system of
- 01:10
equations are X equals twelve and X equals negative five
- 01:13
The second one of which is our answer Choice of 00:01:15.98 --> [endTime] choice Yeah All right We're done Yeah
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