STAAR Algebra EOC Review

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

What is the range?

• x = 2

• −∞ < x < ∞

• y = 2

• none of these

What is the domain?

• x = 2

• All real numbers

• y = 2

• None of these

What value of x makes the following true?

6(5x - 3) + 2 = 14

• 2

• .5

• -1

• 1

What is the solution to this equation?

2(a + 4) = 2a - 8 + 4a

• 3

• -3

• -4

• 4

Write an equation that could be used to find how many packs of DVDs you can buy with 168 dollars if one pack costs 12 dollars.

• 168x = 12

• 12x = 168

• 12(168) = x

• 12 / x = 168

Write an equation from the following description: Bob sells popcorn at 50 cents per bag. 

• y=5x

• y=0.5x

• y=1/5x

• y=1/0.5x

An Algebra book has a total of 1382 pages which is broken into two parts. The second part of the book has 64 more pages than the first part. Write a system of equations to find the number of pages for each part of the book. Let  x =  number of pages of the first part of the book and y = number of pages of the second part of the book

• x + y =1382
  y = 64x

• x + y =1382
  y = 64 + x

• x + y =1382
  y = x - 64

• x + y =1382
  y = -64x

At a holiday ski resort, skis cost $16 to rent and snowboards cost $19. If 28 people rented on a certain day and the resort brought in $478, which system could be used to determine the number of skis (s) and snowboards (b) rented?

• s+b=478
  19s+16b=28

• s + b = 28
  16s+19b=478

• s+b=478
  16s+19b=28

• s+b=28
  19s+16b=478

Give the y-interecept
5x + y = 5

• (1,0)

• (0,5)

• (5,0)

• (0,1)