Linear Functions and Relations Review Interval Notation

What is the y-intercept of the line?

• (0,1/2)

• (1,0)

• (-1/2,0)

• (0,-1)

Which situation can be represented by y = 17x - 8?

• The number of seeds, y, needed to feed 8 hamsters 17 seeds each.

• The earnings from a lemonade stand, y, selling glasses at 17 dollars each with $8 in the tip jar.

• The cost, y, of buying 17 movie tickets that sell for $8 each.

• The cost, y, of buying Star Wars figurines at $17 each with an $8 discount.

What is the rate of change for the following graph?

• 80

• 20

• 40

• 160

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

Find the rate of change

• 1

• 2

• 11

• Not a constant slope/Non-Linear

Is this relation a function?

• True

• False

What interval notation does the number line graph represent?

• [∞, -5)

• (∞, -5)

• [-5, ∞)

Write the following in interval notation.

x < 8

• (8, -∞)

• (-∞, 8]

• (-∞, 8)

Write the following in interval notation.

x ≥ 100

• (0, 100]  

• (∞, 100]

• [100, ∞)

Write the following in interval notation
 x < 8

• (8, ∞)

• (8, -∞)

• (-∞, 8)

• [-∞, 8]