Math 8

Linear Equations

100

What is the slope of the given line?

y = -2x + 4

-2

200

What is the equation of the line that has a slope of 6 and goes through the point (0,4)

y = 6x + 4

300

What is the slope of the line that goes through the points (2,3) and (4,6)?

3/2

400

Identify the slope AND y- intercept from the following equation:

y - 2 =3(x-2)

m = 3

b = -4

500

Which has a greater rate of change?

1) y - 4 = 5(x -10) 

2) a line through the points (-2, -3) and (6, 7)

1

Function?

100

How can you tell if a graph is a function?

Vertical Line Test

200

Determine if the given set of points is a function. 

{(-2,1), (0,3), (2, 1), (3,0)}

Yes, function

300

Determine if the given set of points is a function.

{(1,2), (2,2), (3,2), (4,2)}

Yes, Function

400

What value of x would make the set of points a function?

{(-1,1), (x, 2), (4, 8), (6,10)}

Any number that is not -1, 4, or 6

500

Which equation does not represent a function?

A. y = 2x + 3

B. y - 3 = 4(x + 2) 

C. x²+y²=16

D. 2x + 2y = 16

C

Solving Equations

100

Solve for x 

2(x + 1) = 4

x = 1

200

solve for y 

y+2 +3y = 10

y = 2

300

solve for d 

2(d + 2) + 3d = 14

d = 2

400

solve for r

i=prt 

r = i/(pt)

500

solve for x 

y = mx+b

x = (y-b)/m

Rational, irrational, squares and square roots

100

Which of the following is a rational number?

A. 1/3

B. sqrt45

C. pi

D. 1.213214215216...

A

200

Which number is irrational?

A. 0 .12345

B. sqrt 25 

C. Sqrt 35

D. 0.4545454545...

C

300

Evaluate 

x²= 16

4 and -4

400

what two digits does the square root of 70 fall between?

8 and 9

500

evaluate 

x³ = 125

x = 5

Mixed Bag

100

How would you describe the points on a scatter plot that has positive association? 

The points are trending upward from left to right. 

200

What is the x- value that makes the system true?

2x + 3y = 6

y = 2x + 2

x = 0

300

Simplify

(2²(2⁶))/2⁴

2⁴ or 16

400

What is the length of the hypotenuse if one leg measures 6 and the other measures 8?

10 

500

What is the volume of a cone with a diameter of 10 and a height of 6? Round to the nearest tenth. 

157.1