10/24 Linear Equations

What does "m" represent in y=mx+b?

• y-intercept
• slope
• macaroni
• nothing

Name the x- and y-intercepts for the equation:
5x - 3y = 15

• (3, 0) and (0, -5)
• (0, 3) and (-5, 0)
• (5, 15) and (15, 3)
• (0, -3) and (5, 0)

Name the x- and y-intercepts for the equation:
2x + y = 6

• (0, 3) and (6, 0)
• (0, -3) and (-6, 0)
• (3, 0) and (0, 6)
• (-3, 0) and (0, -6)

Solve the equation for y:
4x - 3y = 12

• y = -4/3x + 3
• y = -4x + 12
• y = 4/3x - 4
• y = 4/3x - 12

Solve the equation for y:
-x + 3y = 9

• y = 1/3x + 3
• y = 1/3x + 9
• y = -1/3x + 3
• 3y = x + 9

Solve for y:
y + 2 = -3(x - 5)

• y = -3x + 17
• y = -3x + 13
• y = -3x - 13
• y = -3x - 17

Give the y-intercept

• (2,0)
• (0,2)
• (0,-2)
• there is no y-intercept

Give the x-intercept

• (1,0)
• (0,1)
• (0,-1)
• there is no x-intercept

Give the y-interecept
3x + y = 5

• (0,-3)
• (0,5)

Solve for y.  Then, find the slope.
6x - 3y = -9

• m= 6 
  y-intercept is 9
• m=2
  b=3
• m=-9
• m = 3
  b = 2