Find the x-intercept and y intercept
3x-5y=15
how do I do that? thanx.
2007-03-11 08:34:30 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
To find the x-intercept, you substitute 0 for y.
3x-5(0)=15
3x=15
x=5
To find the y-intercept, you substitute 0 for x.
3(0)-5y=15
-5y=15
y=-3
2007-03-11 08:44:27 · answer #1 · answered by cyn cyn 3 · 0⤊ 0⤋
simple.
to find the x-intercept -
3x-5y=15 write the original equation
2x-3(0)=15 substitute 0 for y.
solve for x
and for the y-intercept
do the same thing except of replacing the x for zero
replace the y for zero
i hope that helped
2007-03-11 15:43:36 · answer #2 · answered by roxygirlalex 2 · 0⤊ 1⤋
Ok, this is in standard form, so it should be fairly easy to manuveur the numbers...
x-int: C/A = 15/3 = 5
y-int: C/B = 15/-5 = -3
If you want to find the slope, do -A/B = -3/-5 = 3/5 = .6
Hope I helped.
2007-03-11 15:56:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋
x=5, y=-3
2007-03-11 15:50:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I thought if a problem has 2 unkowns (eg x and y) then there has to be 2 equations, because then it would be a simultaneous equation. Or am I being really stupid for saying that?
2007-03-11 15:44:57 · answer #5 · answered by ? 5 · 0⤊ 0⤋
x=12 and y=0
I hope this is right!!!!
2007-03-11 15:40:20 · answer #6 · answered by L 3 · 0⤊ 1⤋