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Linear Equations, Inequalities, and Systems Videos 12 videos
What is the equation of the line graphed above?
A line passes through the point (-4, -4) and has a slope of . What is its equation?
Line A has an x-intercept of -4 and a y-intercept of 8. What is its slope?
TSI Math: Identifying the Graph of a Particular Equation 2 Views
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Description:
Which of the following graphs is of the line 2x + 3y = 6?
- TSI Math / Elementary Algebra and Functions
- Test Prep / TSI
- Elementary Algebra and Functions / Linear Equations, Inequalities, and Systems
- TSI Mathematics / Elementary Algebra and Functions
- TSI / TSI Math
- Elementary Algebra and Functions / Linear Equations, Inequalities, and Systems
- TSI / TSI Mathematics
- Test Prep / TSI
Transcript
- 00:02
All right sy match members There we go Got a
- 00:04
pretty colored chart here The following diagram shows graphs of
- 00:08
several lines and so you get the lines labeled over
- 00:10
here on the right a bcd Well let's See the
- 00:12
question which of the following graphs is of the line
Full Transcript
- 00:16
Two x plus three Why is six A cz you
- 00:24
stare more thiss graph o you'll notice it's beautiful it's
- 00:27
sophisticated it has influence of the monthly on the algebra
- 00:30
on yeah we're just making that up it's really Just
- 00:33
a series of linear grass but that doesn't mean it
- 00:35
can't make a good picture to find the graph that
- 00:37
matches the equation to explode Three weikel six we could
- 00:39
try plugging in points of each of the lines and
- 00:42
see which ones create true statements However that could take
- 00:45
a long as it took michelangelo to paint sistine chapel
- 00:48
so instead let's just change to explode Three y equal
- 00:51
six into the y equals mx plus b thing that
- 00:53
we started musing about it Start here and that gets
- 00:56
us three y equals negative two Acts plus 6 and
- 00:59
then yeah we just divide out three on both sides
- 01:01
so we get negative Two thirds acts plus too because
- 01:05
we gotta divide that six by the three there well
- 01:07
in slope intercept form Then the slope m is the
- 01:10
coefficient of x here So it's negative two thirds Which
- 01:13
means the line decreases gently from left to right And
- 01:17
even mona lisa has to smile at This discovery will
- 01:20
the bee in the slope Intercept form tells us that
- 01:22
the line crosses the y axis at to the matching
- 01:26
line then is just graft Be right here this thing 00:01:28.913 --> [endTime] this beautiful red line Okay we're done
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