ACP preparation 5

Alejandro has $60 in his savings account and

he deposits $30 each week.

The graph shows the amount of money his sister

Deanna has inher saving account.

Which system of equations is used to find x, the number

of weeks it will take for them to have the same

amount, y, in their savings accounts?

• y = 60x + 30

  y = 20x + 40

• y = 60x + 30

  y = 20 + 40x

• y = 60 + 30x

  y = 20x + 40

• y = 60 + 30x

  y = 20 + 40x

• 6
• g(x)
• - 4
• x
• 4
• - 6

What is the domain of the given function?

​ (a)  

What is the range of the parabola?

​ ​ (a)  

What is the y-intercept of the graph shown?

​ (a)  

• (0, 1)
• (1, 0)
• (3, 0)
• (0, 3)

What is the equation in slope-intercept form of the graph shown?

​ ​ (a)  

• B
• A
• C
• D

Mathematical Equivalence

ON

After graduation, Cam's grandfather spent $158.81 taking the entire family out

to eat at a buffet. Adults ate for $8.99 and children ate for $6.99. The number

of adults was one more than twice the number of children. Which system of

equations is used to find a, the number of adults, and c, the number of

children in Cam's family?

• 8.99a + 6.99c = 158.81

  a = 2c + 1

• 6.99a + 8.99c = 158.81

  c = 2a + 1

• 8.99a + 6.99c =318.62

  c = 2a + 1

• 8.99a - 6.99c = 158.81

  a = 2c + 1