Can someone help me change this standard form equation into a slope intercept eqaution???
4x+5y=15
2007-11-01 15:48:03 · 11 answers · asked by Cody L 1 in Science & Mathematics ➔ Mathematics
4x + 5y = 15
5y = -4x + 15
y = (-4/5)x + 3
2007-11-01 15:53:36 · answer #1 · answered by Philo 7 · 0⤊ 0⤋
okay.. the SLOPE -INTERCEPT equation is y = mx + b
4x + 5 y = 15
1. you minus 4x from the left and the right, so u get...
5y = - 4x + 15
Note * the 4x on the left hand side disappears b/c u canceled it out by subtracting 4x
another note * this is in the slope intercept form already, but if u want to reduce it to y = mx + b then follow the next couple steps.
2. then u divide everything by 5 to get Y by itself
y = (- 4/ 5)x + 15/5
3. then u reduce the fractions, so u get
y = (- 4/5)x + 3
2007-11-01 23:00:48 · answer #2 · answered by star23 1 · 0⤊ 0⤋
Slope-intercept form is y=mx+b
4x+5y=15
5y=-4x+15
y=(-4/5)x+3
2007-11-01 22:54:10 · answer #3 · answered by Sparkle 4 · 0⤊ 0⤋
You have to get it to y=mx+b where b is the intercept and m is the slope solving for
4x+5y=15
5y=15-4x
y= -4x/5+3
so slope is -4/3 and y intercept is 3
2007-11-01 22:53:46 · answer #4 · answered by t d 2 · 0⤊ 0⤋
Well what's the slope intercept equation?
y=mx+b , correct?
so your best bet is to do some addition and multiplication to get the equation: 4x + 5y=15 to look like y=mx+b
2007-11-01 22:57:22 · answer #5 · answered by terfenol_d_shapeshifter 1 · 0⤊ 0⤋
Y= -4/5x +3 the -4/5 is the slope
2007-11-01 22:54:18 · answer #6 · answered by Anonymous · 0⤊ 0⤋
4x + 5y = 15
5y = -4x + 15
y = -4/5 x + 15/5
y = -0.8 x + 3
2007-11-01 22:53:41 · answer #7 · answered by TeenageGuy 3 · 0⤊ 0⤋
5y = -4x + 15
y = -4x/5 + 3
2007-11-01 22:55:09 · answer #8 · answered by norman 7 · 0⤊ 0⤋
y=(-4/3)X+3
2007-11-01 22:54:45 · answer #9 · answered by Anonymous · 1⤊ 0⤋
y=-0.8x+3
-0.8 = slope
3 = intercept on the y axis
2007-11-01 22:53:36 · answer #10 · answered by Anonymous · 0⤊ 0⤋