Math 8th Grade STAAR Review

Transformations

100

The image is a larger or smaller version of the preimage; "shrinking" or "enlarging."

Dilation

200

 "a turn."

Rotation

300

 clockwise and counterclockwise rotation:

 (x,y) becomes (−x,−y)

180 degrees

400

which axis is the formula reflecting over ?

(x,y)-->(x,-y)

Over the x-axis

500

what is the scale factor

D (0,4) becomes D' (0,8)
E (1,-2) becomes E' (2,-4)
F (-4,2) becomes F' (-8,4)

2

Classifying numbers

100

what type of number is 1.9

Rational

200

Is 58/2 natural or not

Yes

300

All rational numbers are integers ?

False

400

consist of the natural numbers and 0. 0, 1, 2, 3, 4, . . .

Whole Numbers

500

The integers consist of the natural numbers, 0, and the opposites of the natural numbers.

True or False?

True

Equations with variables on each side

100

−3 + 5a = 4a − 10

-7

200

4r + 8 + 5 = −15 − 3r

-6

300

4n − 1 = 6n + 8 − 8n + 15

4

400

36 + 5n = −3(n + 4)

-6

500

−2k = k − 7 − 8

5

Formulas

100

formula for interest rate

I=PRT

200

slope formula

y2-y1/x2-x1

or

rise/run

300

Pythagorean theorem

a²+b²=c²

400

Lateral Surface area of Cylinder

 2 × π × r × h

500

Compound Interest Formula

A=P(1+r)^t

Random

100

-4x5

-20

200

-285x-900

256215

300

Free 

300x2

400

how many quarts are in 3 gallons

12

500

Free

500