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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?

Language:
English Language

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

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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