What you know about math

Literal Equations

100

State True or False. 

A literal equation can have only one variable?

False

200

Solve for b: P=a+b+c 

b=P-a-c

300

solve for x: 2x+7y=12

x=6-7y/2

400

Solve for r: d=rt

 r=d/t

500

Solve for S: 2sn=s+n

s=n/2n-1

Slope

100

What is Slope?

A constant change in y over the change in x.

200

What is the Slope of -2x+5?

-2

300

What is the y-intercept of y=7-2x?

7

400

Determine the slope between the points(5,-5)(-1,7)

-2

500

Find the slope and y-intercept for 2x-y=5

slope is 2 and y-intercept is -5

Square Roots

100

 Which of the following numbers is a perfect square?

(a) 141

(b) 196

(c) 124

(d) 222

(b) 196

200

A perfect square number can never have the digit ….. at the unit's place.

(a) 1

(b) 4

(c) 8

(d) 9

(c)8

300

Evaluate √6084

(a) 75

(b) 77

(c) 78

(d) 68

(c)78

400

Find the square root of 5929.

(a) 49

(b) 33

(c) 77

(d) 73

(c)77

500

Evaluate √1471369.

(a) 1213

(b) 1223

(c) 1233

(d) 1243

(a)1213

Direct & Inverse Variation

100

What does the Direct Variation Equation look like?

y= kx

y = mx + b

y = b

y = x

y=kx

200

Y varies directly with x, and y is 84 when x is 16. Which equation represents this situation?

y=1344x

y=100x

y=5.25x

y=4/21

y=5.25x

300

Classify the equation:
15x=3y

Direct Variation

Inverse Variation

Joint Variation

Linear Equation

Direct Variation

400

Is the given table a direct or inverse variation? What is the constant of variation?

Direct, 12

Inverse, 12

Direct, 1/12

Inverse, 1/12

Inverse, 12

500

The cost per person to rent a mountain cabin is inversely proportional (varies inversely) to the number of people who share the rent. If the cost is $36 per person when 5 people share, what is the cost per person when 8 people share?

$22.50

$57.60

$1.11

$12.50

22.50

Evaluating Expressions

100

Evaluate ac/b if a=5, b=2, and c=10

25

200

Evaluate 3xyz−8 if x=−4,y=−3, and z=−6

-224

300

Jack and Diane own a company that sells scooters. The amount they pay the employees on their sales team (in dollars) is 15x+25y. In this expression, x represents the number of hours worked and y represents the number of sales made. How much would an employee make if they work for 5 hours and sell 4 scooters?

$175

400

Claire’s bakery sells croissants, muffins, and donuts. The expression 3.5c+4m+2.5d gives the cost (in dollars) of c croissants, m muffins, and d donuts. Will is having a party and needs to order 10 croissants, 6 muffins, and 12 donuts. What is the total cost of Will’s order?

$89

500

Evaluate 3(a+c²)/12 if a=−9 and c=5

4