Find the slope of the line 2x + 7y = 28
Find the x intercept of the line
Find the y intercept of the line
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OpenStudy (anonymous):
Can anybody give me a hand?
OpenStudy (here_to_help15):
maybe :)
OpenStudy (anonymous):
:/
OpenStudy (here_to_help15):
im jk lol yeah
OpenStudy (anonymous):
:D
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OpenStudy (here_to_help15):
can i give you a site with a explanation and answer lol im cuz im really busy but i will be here when u need me
OpenStudy (here_to_help15):
www.tiger-algebra.com/drill/2x-7y=28
OpenStudy (here_to_help15):
www.tiger-algebra.com/drill/2x-7y=28/
OpenStudy (here_to_help15):
x-intercept is 28/2=14
yintercept is 28/-7 = 4/-1 = 4.00000
OpenStudy (here_to_help15):
slope is 0.571/2.000 = 0.286
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OpenStudy (anonymous):
normal equation of a line is
y=mx+c
so we have to 1st change the equation to find our gradient which is m
2x+7y=28
7y = -2x + 28 (make y the subject of the formula)
y = -2/7 x + 4
therefore our m is -2/7 which is our gradient.
to find x-int make y=0 so
2x + 7y =28
2x + 7(0) = 28
2x= 28
x= 14
therefore the x-int is (14,0)
to find the y-int make x=0 so
2x + 7y = 28
2(0) + 7y = 28
7y = 28
y=4
therefore y-int is (0,4)
OpenStudy (here_to_help15):
@Julie275 u there?? lol
OpenStudy (anonymous):
Yeah i was jus reviewing all of it
OpenStudy (here_to_help15):
oh lol
OpenStudy (here_to_help15):
anything else i can help with?
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OpenStudy (anonymous):
So would the slope be -2/7?
OpenStudy (here_to_help15):
mhmm :)
OpenStudy (here_to_help15):
well at least that what she said
OpenStudy (anonymous):
yes
OpenStudy (here_to_help15):
but nvm
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