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Mathematics 20 Online
OpenStudy (anonymous):

Help I'll Give anything

OpenStudy (anonymous):

jimthompson5910 (jim_thompson5910):

draw a vertical line through x = 1 where does this vertical line cross the parabola?

OpenStudy (anonymous):

yes but I get confused with whether or not I draw it vertically or horizontally

jimthompson5910 (jim_thompson5910):

you draw it vertical (straight up and down)

OpenStudy (anonymous):

1,-3

jimthompson5910 (jim_thompson5910):

yep (1,-3) is on the graph do the same for x = 3

OpenStudy (anonymous):

yep that where I agian get confused x=3 = nothing...

OpenStudy (anonymous):

that's*

jimthompson5910 (jim_thompson5910):

draw a vertical line through x = 3 where does that vertical line touch the parabola

OpenStudy (anonymous):

3,1 ??

jimthompson5910 (jim_thompson5910):

good

jimthompson5910 (jim_thompson5910):

the two points are (1,-3) and (3,1)

jimthompson5910 (jim_thompson5910):

find the slope through (1,-3) and (3,1) slope formula \[\Large m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]

OpenStudy (anonymous):

-2 then

jimthompson5910 (jim_thompson5910):

no the slope isn't -2

jimthompson5910 (jim_thompson5910):

are you familiar with the slope formula?

OpenStudy (anonymous):

ohh my bad 2

jimthompson5910 (jim_thompson5910):

did you use the slope formula to get 2?

OpenStudy (anonymous):

yes

OpenStudy (nuttyliaczar):

Is everything clear here or do you still need help?

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