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Mathematics 21 Online
OpenStudy (anonymous):

**WILL MEDAL** NEED HELP ASAP PLZ!!!!

OpenStudy (anonymous):

What is the slope-intercept form of the function that contains the point (6, 2) and has a slope of 3? y = ? x+ ?

jimthompson5910 (jim_thompson5910):

"has a slope of 3" that means m = 3

jimthompson5910 (jim_thompson5910):

"contains the point (6, 2)" so x = 6 and y = 2

OpenStudy (anonymous):

Ok

jimthompson5910 (jim_thompson5910):

y = mx+b y = 3x + b ... replace m with 3 2 = 3*6 + b ... replace x with 6, replace y with 2 solve for b

OpenStudy (anonymous):

Thx Ill tell what I get(:

jimthompson5910 (jim_thompson5910):

ok great

OpenStudy (anonymous):

2=18b?

OpenStudy (anonymous):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

2 = 18 + b actually

jimthompson5910 (jim_thompson5910):

you need to isolate b now

OpenStudy (anonymous):

Ok how do I do that

jimthompson5910 (jim_thompson5910):

how would you move that 18 over

OpenStudy (anonymous):

Add?

jimthompson5910 (jim_thompson5910):

add 18 to both sides?

jimthompson5910 (jim_thompson5910):

try it out and see if you can eliminate the 18 on the right side

OpenStudy (anonymous):

No subtract 18 to both sides my bad

jimthompson5910 (jim_thompson5910):

you are correct

jimthompson5910 (jim_thompson5910):

you subtract 18 from both sides

OpenStudy (anonymous):

-16+b?

jimthompson5910 (jim_thompson5910):

I think you meant to say -16 = b

jimthompson5910 (jim_thompson5910):

that's the same as b = -16

OpenStudy (anonymous):

Yes sorry

jimthompson5910 (jim_thompson5910):

so m = 3 and b = -16

jimthompson5910 (jim_thompson5910):

y = mx+b turns into y = 3x - 16

OpenStudy (anonymous):

Ahhh Thx!!!!!!!!!!!!!!!!!!!!!!!

jimthompson5910 (jim_thompson5910):

you're welcome

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