Algebra
19 Online
OpenStudy (anonymous):
write an equation in the form y =mx+b for the line that passes through (1,-10) and has a slope of 3
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
ok so m= slope so first plug in 3 for m
OpenStudy (anonymous):
whats your new formula
OpenStudy (anonymous):
what do i have to subtract to get my formula
OpenStudy (anonymous):
nothing
OpenStudy (anonymous):
just substitute 3 for m which is the slope
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
(3,y1
OpenStudy (anonymous):
having hard time need to know more
OpenStudy (anonymous):
y =mx+b is your formula just put 3 where m is to get y=3x+b
get it?
OpenStudy (anonymous):
ok get it
OpenStudy (anonymous):
now, take your point (x,y) which is (1,-10) and plug it in that formula that i just gave you
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
10=3(1)+b
OpenStudy (anonymous):
solve for b
OpenStudy (anonymous):
3x1=3
OpenStudy (anonymous):
not quite, subtract 3 from ten, remember?
to solve a variable isolate it by putting it on one side of equation with everything else on the other
OpenStudy (anonymous):
-7
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
yes thats b, no use m and b in the original formula y=mx+b
OpenStudy (anonymous):
*now, not no sorry
OpenStudy (anonymous):
thank u
OpenStudy (anonymous):
my pleasure
OpenStudy (anonymous):
it said im wrong
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
what did you put in
OpenStudy (anonymous):
y=3x+-7
OpenStudy (anonymous):
sorry, its y=3x+7
10-3=7 i didn't notice the neg sign
OpenStudy (anonymous):
i guess subtract 3 from ten confused you....
that means take 3 away from ten not ten from 3
OpenStudy (anonymous):
so sorry
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
its ok you help i appreate it