Equations in Y=MX Form

Given x= 2 and y= 8; find the direct variation equation 

• y= 1/4x

• y=-4x

• y=4x

• y= -1/4x

Is this a direct variation?
y=2x

• yes

• no

Is this proportional?
y=2x

• yes

• no

In the equation y = 14x, what is the slope?

In the line y = mx + b, what is true?

• The y-intercept is

  (0, b)

• The x-intercept is

  (0, b)

• The slope is m

• It is linear

In the equation y=mx+b, m is the ____.

• Slope

• Y-intercept

• X-intercept

• Origin

In the equation y=mx+b, what does the m represent?

• slope

• y-intercept

• linear

• point-slope

What does the "b" stand for in y=mx+b?

• slope

• x-intercept

• y-intercept

write down the equation of the line if gradient = 3/4 y-intercept = -1/2

write down the equation of the line if gradient = 2 y-intercept = -5