Alg. Module 5 Review

Which function is linear?

• y = 2x + 4
• y = 2x² + 4
• y = 2x(4 − 3x)
• xy = 15

Is the function Linear or Nonlinear?

• Linear
• Nonlinear

Tags

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

What is the y-intercept in the equation x + 2y = 4

• 0

• 2

• 4

• TB Rays

What are the x and y intercepts for the following equation ?
4x - 10y = 20

• x - int = 4    
  y-int = -10
• x-int = 5
  y-int = 2
• x - int = 5
  y int = -2
• x -int = 4
  y -int = -10

At a fair, hamburgers sell for $3.00 each and hot dogs sell for $1.50 each. The equation 3x + 1.5y = 30 describes the number of hamburgers and hot dogs a family can buy with $30. Find and interpret the x-intercept

• If they buy no hot dogs, they can buy 10 hamburgers.

• If they buy NO hamburgers, they can buy 20 hot dogs

• They will just have to go hungry.

• I'd rather have pizza.

At a baseball game, Doug has $12 to spend on popcorn and peanuts. The peanuts are $4 and the popcorn is $2. The function 4x + 2y = 12 describes the amount of peanuts x and popcorn y he can buy if he spends all his money. The function is graphed below. Find the intercepts. What does each intercept represent? 

• Let's get a hot dog instead.
• No peanuts, 6 popcorns.  3 peanuts, and no popcorns
• No peanuts, and 5 popcorns.
  3 peanuts, not popcorn

What is the slope of a horizontal line?

• 0
• undefined

Find the slope of the line.

• Undefined
• 0
• 1
• -1

What is the slope in the picture?

• Positive
• Negative
• Zero
• Undefined

What is the slope in the picture?

• Positive
• Negative
• Zero
• Undefined