Algebra 1A - Unit 2

VOCABULARY

100

Identify the leading co-efficient, the number of terms and the constant of the following expression:

6x³ + 2x² - 5x + 4

Leading co-efficient: 6

Number of terms: 4

Constant: 4

200

Put the following expression in STANDARD form:

3x - 6x² + 4x³ - 2

4x³ - 6x² + 3x - 2

300

What are TWO keywords used to show multiplication in a word problem?

Possible answers:

Product, Per, Each, Twice

400

What is the square root of 64?

8

500

Give one example of a rational number and one example of an irrational number.

rational - answers will vary

irrational - answers will vary

Expressions/Equations

100

Solve: 

7x-5=3x+11

x=4

200

Simplify the following expression: 

3(y² - 1) + 4(2y² + 3)

11y² + 9

300

Solve:

9x-5-2x=3(x-7)

x=-4

400

Simplify:

2+3(a³-2a+1)

3a³-6a+5

500

3/5 (x + 4/3) = 1.04

x = .4

Proportions

100

Solve for x.

x/5 = 3/15

x = 1

200

Solve for n.

n/5 = 8/4

n = 10

300

Solve for x.

10/6 = (x +10)/3

x = -5

400

Solve for m.

3/2 = 9/(m+8)

m = -2

500

Solve for x. 

(x+2)/5 = (x-1)/8

x = -7

Word Problems

100

Write an expression that is equivalent to eighteen less than three times a number, n.  Include a let statement.

Let n = a number

3n - 18

200

x=a

8

300

Verizon charges a one-time fee of $100 towards the purchase of a cell phone plan and 25 cents per text message.  Write the expression that represents the total cost of x number of text messages.

.25x+100

400

Six times a number is 4 less than twice the number.

Write a let statement and solve for the number.

Let x = a number

x = -1

500

Sarah's mom found a great price on a computer monitor.  She paid $200 for it, which was $50 more than half the original price.  What was the original price, in terms of p, of the monitor before the sale? Include the let statement.

Let p = the original price of the monitor

200 = p/2 + 50

Wildcard

100

Identify the property being used in the following expression:

6+(7+2) = (6+7)+2

Associative Property of Addition

200

x² = 16

Solve for x.

x = 4

300

Solve for x.

sqrtx = 5

x = 25

400

2. Adi is 5 inches shorter than Sunny. Write an equation to find Adi’s height, A, if you know Sunny’s height, s.

s - 5 = A

500

Solve for x.

9x - (x - 4) = 2(x+1) + 3x + 17

x = 5