Do Now- September 21, 2021- 8th

Write the equation for the line in slope-intercept form.

• y= -1x+3

• y= 4x+3

• y=1/4x+3

• y= -4x+3

y = -x - 3

SLOPE is

Answer explanation

Slope is always a coefficient of x.

When graphing, one always marks FIRST

• the y-intercept on the y-axis

• the slope on the y-axis

• the y-intercept on the x-axis

• the slope on the x-axis

When graphing, one always starts counting the slope

• from the origin (0,0)

• on the y-axis

• from the y-intercept

• on the x-axis

Determine which equation does NOT represent a proportional relationship. CHECK ALL THAT APPLY

• y = -2x

• y = 1/2 x

• y = 3

• y = 5x - 7

• y = 2x²

The graph above shows the price of games in dollars.  Is the graph proportional and how do you know?

• The graph is proportional  because it is linear.
• The graph is proportional because it is linear and passes through the origin.
• The graph is not proportional because it does not pass through the origin.
• The graph is not proportional because it is not linear and it does not pass through the origin.

Which best describes this equation?
y= 3.75x + 2

• Proportional 
• Non-proportional

What is the y-intercept for the following table and is it proportional or non-proportional?

• Proportional, y-intercept is 0
• Non-proportional, y-intercept is 0
• Proportional, slope is 0
• Non-proportional, slope is 0

Which statement best describes the relationship between x (dogs) and y(paws) in the table?

• Proportional

• Not Proportional