Mathematics
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OpenStudy (anonymous):
**WILL MEDAL**
NEED HELP ASAP PLZ!!!!
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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
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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
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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?
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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?
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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
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OpenStudy (anonymous):
Ahhh Thx!!!!!!!!!!!!!!!!!!!!!!!
jimthompson5910 (jim_thompson5910):
you're welcome