Linear Functions

Identify the slope and y-intercept of:
y = 1/5x + 5

• slope: 1/6   y-intercept:  4 
• slope: 1/5   y-intercept:  5 
• slope: 5/1   y-intercept:  5 
• slope: 1   y-intercept:  5 

Write a rule : Miles has joined a weight loss program. His weight is 225 lbs and he is losing weight at a rate of 3 lbs per week.

• $y=222x$

• $y=3x+225$

• $y=-3x+225$

• $y=225x-3$

Find the slope of the line.

• -5/4
• 5/4
• -4/5
• 4/5

Find the slope of the line.

• Undefined
• 0
• 1
• -1

Find the slope of the line.

• Undefined
• 0
• 1
• -1

Write the equation of the line.

• $y=\frac{5}{3}x-1$

• $y=\frac{3}{5}x-1$

• $y=\frac{5}{3}x+1$

• $y=\frac{3}{5}x+1$

Which equation best represents the relationship between x and y in the table shown?

• $y=5x+5$

• $y=\frac{1}{5}x+5$

• $y=15x+5$

• $y=10x+5$

Which company shows a greater rate of change?

• Water's Edge Rafts
• Ryan's Rafts

Which panda is growing faster?

• Mochi
• Kappa
• Po the dragon warrior
• Jack Black

Jenny went to the sale at Kohl's last weekend.  
T-shirts were on sale for $15 each and hoodies were on sale for $20 each.  If she spent $150 total, write an equation to represent this situation.  

• 20x + 15 = y 
• 35x = y 
• 15x + 20y = 150 
• 150 - 20x = 15y