STAAR Algebra 1 EOC Review

Which graph is not a function?

• Graph 1

• Graph 2

• Graph 3

• Graph 4

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Identify the domain of the following relation:

• {-6, 14, 2, 28}

• {-6,14, 0, 32, 2, 38, 4,44}

• {-6, 0, 2, 4}

• {14, 32, 38, 44}

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 domain?

• x = 2

• All real numbers

• y = 2

• None of these

Give the x-intercept
3x + 8y = 24

• (8, 0)

• (0, 8)

• (3, 0)

• (0, 3)

Give the y-interecept
5x + y = 5

• (1,0)

• (0,5)

• (5,0)

• (0,1)

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

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

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