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GED Math: Graphs and Functions Drill 3, Problem 5. What is the negative root of the quadratic function?
GED Math Graphs and Functions Drill 5, Problem 3. How many more kilowatts is Kristoph's oven rated compared to his air conditioner?
GED Math: Graphs and Functions Drill 5, Problem 5. What is the value of a?
GED Math 5.5 Graphs and Functions 882 Views
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Description:
GED Math: Graphs and Functions Drill 5, Problem 5. What is the value of a?
- Functions / Interpret functions that arise in applications
- Functions / Interpret functions that arise in applications
- Functions / Analyze functions using different representations
- Functions / Analyze functions using different representations
- Functions / Construct and compare linear, quadratic and exponential models
- Functions / Construct and compare linear, quadratic, and exponential models
- Functions / Interpret expressions for functions in terms of the situation they model
- Functions / Interpret expressions for functions in terms of the situation they model
- Functions / Interpret functions that arise in applications in terms of context
- Functions / Analyze functions using different representations
- Functions / Construct and compare linear, quadratic, and exponential models
- Functions / Interpret functions that arise in applications
- Functions / Interpret functions that arise in applications
- Functions / Analyze functions using different representations
- Functions / Analyze functions using different representations
- Functions / Construct and compare linear, quadratic, and exponential models
- Mathematical Practice / Mathematical Fluency
Transcript
- 00:00
Thank you We sneak in and here's your shmoop du
- 00:05
jour Brought to you by downward opening for abdullah's way
- 00:10
We planted them all the graph of y equals x
- 00:13
squared minus two x plus six is shown beloved what's
- 00:17
the value of a and here's the bench lands Okay
Full Transcript
- 00:21
let's take a quick inventory way Have a problem We
- 00:24
have a graph and we have our brain Hopefully that's
- 00:26
enough The equation of the parabola is given its why
- 00:29
equals x squared minus two x plus six and we're
- 00:32
being asked to find the value of a right No
- 00:36
problems There are a few points this parable of passes
- 00:39
through i look to this graph Negative six zero hero
- 00:43
thing two zero we can plug in any of them
- 00:46
But what fans of small numbers around here so let's
- 00:49
use to zero the equation will become zero equals a
- 00:53
times two squared minus two times to plus six We
- 00:57
could clean that puppy up a bit but two squared
- 01:00
is four and two temps two is also four so
- 01:03
we can rewrite as zero equals for a minus four
- 01:06
plus six and of course the minus foreign plus six
- 01:09
Or really just positive too So we're left with zero
- 01:12
equals four a plus to subtract two from both sides
- 01:15
to get negative Two equals for a then divide Both
- 01:18
sides fight for to get negative a half people's a
- 01:20
and it looks like our answer is c nice work 00:01:23.092 --> [endTime] framed on your end
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