9-28 Do Now Assessment Review

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.

• y = 20x + 5

• y = 5x +20

• y=-5x + 20

• y = 5x - 20

What inequality is graphed?

• -3 > x > 2

• -3 < x > 2

• x > 2 or x ≤ -3

• x > 2 or x < -3

Solve -4|x + 1|+ 5 < -15

• x < -6 or x > 4

• -6 < x < 4

• -4 < x < 4

• x < -4 or x > 4

Write the equation of a graph.

• $y=-\frac{2}{3}x-2$

• $y=\frac{2}{3}x-2$
  

• $y=\frac{3}{2}x-2$
  

• $y=-\frac{3}{2}x-2$
  

Which of the following is not a solution to this system of inequalities?

• (0,-1)
• (0,3)
• (4,0)
• (6,-2)

A large pizza at Palanzio’s Pizzeria costs $6.80 plus $0.90 for each topping. The cost of a large cheese pizza at Guido’s Pizza is $7.30 plus $0.65 for each topping. Which system of equations could be used to find the number of toppings (x) when both companies cost (y) the same amount?

• y = 6.80 + .65x

  y=7.30+.90x

• x + y = 6.80

  x + y = 7.30

• y = 6.80+.90x

  y = 7.30 + .65x

• y + .90x = 6.80

  y + .65x = 7.30