How do you graph using slope and intercept of 3x + 2y = 21?

1 Answer
Apr 25, 2018

m= ((-3)/2)
x=7
y=10.5

Explanation:

  • x - Intercept -> when y=0
  • y - Intercept -> when x=0
  • For the slope re-arrange the equation to the for y=mx+b

SLOPE:

y=(-3x+21)/2

y=((-3)/2)x+10.5

So your color(orange)(m= ((-3)/2))

X-INTERCEPT:

3x=21

color(orange)(x=7)

Y-INTERCEPT:

2y=21

color(orange)(y=10.5)