Quiz about 8th Grade Math STAAR Fluency

Question 1

What do we know about the hypotenuse?

Accepted Answer

It is the longest side of a right triangle

Answer

It is the shortest side of a triangle

Answer

It is equal to the base of the triangle

Answer

It is the same length as the other sides

Question 2

What is the difference between B and b?

Accepted Answer

B is the area of the base, b is the measurement of the base

Answer

B is the measurement of the base, b is the area of the base

Question 3

What is the goal when solving equations?

Accepted Answer

To isolate the variable

Answer

To create more equations

Answer

To eliminate all variables

Answer

To graph the equation

Question 4

How do we solve equations?

Accepted Answer

1. Type left side into Desmos

2. Type right side into Desmos

3. See where the two lines cross

Answer

1. Type y=mx+b

Answer

By drawing a diagram

Answer

By memorizing the equation

Question 5

Which word is NOT a word for slope (m)?

Accepted Answer

one-time fee

Answer

per

Answer

each

Answer

every

Question 6

What is needed to find the lateral surface area of a prism?

Accepted Answer

Perimeter of the base and height

Answer

Base area and height

Answer

Volume and base area

Answer

Diameter and height

Question 7

How do I find the scale factor of a dilation?

Accepted Answer

k=new'/old

Answer

k=old/new'

Answer

Calculate the area of the figure

Answer

Find the perimeter of the figure

Question 8

What is the longest side of a right triangle called?

Accepted Answer

Hypotenuse

Answer

Adjacent

Answer

Opposite

Answer

Base

Question 9

What is the scale factor if a shape is reduced?

Accepted Answer

k < 1

Answer

k = 1

Answer

k > 1

Answer

k = 0

Question 10

What is the scale factor if a shape is enlarged?

Accepted Answer

k > 1

Answer

k < 1

Answer

k = 1

Answer

k = 0

Question 11

How do you solve equations?

Accepted Answer

Type both sides into DESMOS and see where they cross, X VALUE

Answer

Type only the left side into DESMOS

Answer

Type only the right side into DESMOS

Answer

y=mx+b

Question 12

What is the perimeter of the base represented by in the formula for volume?

Accepted Answer

P

Answer

B

Answer

V

Answer

h

Question 13

What is the simple interest formula?

Accepted Answer

I = PRT

Answer

I = P + R + T

Answer

I = PRT/100

Answer

I = P + R - T

Question 14

What is the compound interest formula?

Accepted Answer

$$A=P(1+r)^t$$

Answer

A = P + r + t

Answer

A = $$P(1-r)^t$$

Answer

A = P + r - t

Question 15

What is the difference between simple and compound interest?

Accepted Answer

Simple interest = part

Compound interest = whole (total)

Answer

Compound interest = part

Simple interest = whole (total)

Question 16

What are the 2 types of scale factor?

Accepted Answer

Enlargement and Reduction

Answer

Addition and Subtraction

Answer

Multiplication and Division

Answer

Increase and Decrease

Question 17

What is a function?

Accepted Answer

A relation where x values do not repeat

Answer

A relation where y values do not repeat

Answer

A set of ordered pairs

Answer

A mathematical operation

Question 18

How do we find the radius of a circle given the diameter?

Accepted Answer

Divide the diameter by 2

Answer

Multiply the diameter by 2

Answer

Subtract 2 from the diameter

Answer

Add 2 to the diameter

Question 19

How do we find k in direct variation?

Accepted Answer

Divide y by x

Answer

Multiply y by x

Answer

Subtract x from y

Answer

Add x to y

Question 20

What formula do we use for direct variation?

Accepted Answer

y = kx

Answer

y = x + k

Answer

y = k/x

Answer

y = x - k

Question 21

What are the different shapes for B?

Accepted Answer

Rectangular, Triangular, Circular

Answer

Square, Oval, Hexagonal

Answer

Linear, Quadratic, Cubic

Answer

Polygonal, Elliptical, Spherical

Question 22

What is the height of a prism?

Accepted Answer

The distance between the bases

Answer

The length of the base

Answer

The width of the base

Answer

The diagonal of the base

Question 23

When do we use the Pythagorean Theorem?

Accepted Answer

To find the length of a side in a right triangle

Answer

To calculate the area of a circle

Answer

To determine the volume of a cylinder

Answer

To find the perimeter of a rectangle

Question 24

What is the formula for calculating simple interest?

Accepted Answer

I = PRT

Answer

$$A = P(1 + r)^t$$

Answer

$$I = \frac{P}{rt}$$

Answer

$$A = \frac{P}{1 + rt}$$

Question 25

What is the name of this formula? $$\frac{y_2-y_1}{x_2-x_1}$$

Accepted Answer

The slope of the line

Answer

The y-intercept

Answer

The x-intercept

Answer

The midpoint

Question 26

What is the formula for the area of a circle?

Accepted Answer

$$A = \pi r^2$$

Answer

A = bh

Answer

$$A = \frac{bh}{2}$$

Answer

$$C=\pi d$$

Question 27

What is the formula to find the radius of a circle if the diameter is known?

Accepted Answer

$$ ext{radius} = \frac{ ext{diameter}}{2}$$

Answer

$$ ext{radius} = ext{diameter} imes 2$$

Answer

$$ ext{radius} = \frac{ ext{diameter}}{4}$$

Answer

$$ ext{radius} = ext{diameter} + 2$$

Question 28

How do we find the legs of a right triangle?

Accepted Answer

$$a=\sqrt{c^2-b^2}$$

Answer

$$c=\sqrt{a^2+b^2}$$

Question 29

How do we find the hypotenuse of a right triangle?

Accepted Answer

$$c=\sqrt{a^2+b^2}$$

Answer

$$a=\sqrt{c^2-b^2}$$

Question 30

How do we find the lateral surface area of a cylinder?

Accepted Answer

$$S=2\pi rh$$

Answer

$$S=2\pi rh+2\pi r^2$$

Answer

$$A=\pi r^2$$

Answer

V=Bh

Question 31

How do we find the total surface area of a cylinder?

Accepted Answer

$$S=2\pi rh+2\pi r^2$$

Answer

$$S=2\pi rh$$

Answer

$$A=\pi r^2$$

Answer

V=Bh

Question 32

Which transformation does not preserve congruence?

Accepted Answer

Dilation

Answer

Rotation

Answer

Translation

Answer

Reflection

Question 33

Which transformation does not preserve orientation?

Accepted Answer

Reflection

Answer

Rotation

Answer

Translation

Answer

Dilation

Question 34

How do we find the slope of a table?

Accepted Answer

-Build the table in STAT/EDIT, STAT, CALC, 4:Lin Reg, a(m)

Answer

Build the table in STAT/EDIT, STAT, CALC, 4:Lin Reg, b

Question 35

How do we find the y-intercept of a table?

Accepted Answer

Build the table in STAT/EDIT, STAT, CALC, 4:Lin Reg, b

Answer

-Build the table in STAT/EDIT, STAT, CALC, 4:Lin Reg, a(m)

Question 36

How do we find the slope from a graph?

Accepted Answer

Find 2 points that are on the line, then build and calculate using STAT/EDIT

Answer

Find 1 point is on the line, then build and calculate using STAT/EDIT

Answer

Find 1 point that is the y-intercept

Answer

Find the distance between two points

Question 37

What word is mainly used for slope?

Accepted Answer

Rate of Change

Answer

Y-Intercept

Answer

Where the line crosses the y-axis

Answer

One-time fee

Question 38

What does a negative correlation look like?

Accepted Answer

A set of data points on a graph that are going down

Answer

A set of data points on a graph that are going up

Answer

A set of data points on a graph that are scattered

Answer

A set of data points in a u-shape

Question 39

What does a positive correlation look like?

Accepted Answer

A set of data points on a graph that are going up

Answer

A set of data points on a graph that are going down

Answer

A set of data points on a graph that are scattered

Answer

A set of data points in a u-shape

Question 40

What does no correlation look like on a graph?

Accepted Answer

A set of data points on a graph that are scattered

Answer

A set of data points on a graph that are going down

Answer

A set of data points on a graph that are going up

Answer

A set of data points in a u-shape

Question 41

What are the 3 types of relations in scatter plots?

Accepted Answer

Positive, Negative, No Correlation

Answer

Positive only

Answer

Negative only

Answer

No correlation only

Question 42

How do you find the area of a triangle?

Accepted Answer

$$\frac{1}{2}bh$$

Answer

$$\pi r^2$$

Answer

$$\pi r^3$$

Answer

bh

Question 43

How do we know a graph is proportional?

Accepted Answer

Line goes through the origin

Answer

Line does not go through the origin

Answer

Line crosses the x-axis

Answer

Line crosses the y-axis

Question 44

How do we know a graph is non-proportional?

Accepted Answer

Line does not go through the origin

Answer

Line goes through the origin

Answer

Line crosses the x-axis

Answer

Line crosses the y-axis

Question 45

How do we put rational numbers in order?

Accepted Answer

Desmos x= for each rational number

Answer

Desmos y= for each rational number

Answer

1. Type left side into Desmos

2. Type right side into Desmos

3. See where the 2 lines cross

Answer

STAT/EDIT

Question 46

What does m and b represent in y = mx + b?

Accepted Answer

m = slope

b = (0, _)

Answer

m = y-intercept

b = slope

Answer

m = slope

b = (_, 0)

Answer

m = area of base

b = height of prism

Question 47

Which statement is NOT true about the Real Number System

Accepted Answer

Rational numbers are also irrational numbers

Answer

Which statement is NOT true about the Real Number System

Answer

Rational numbers are NOT irrational numbers but BOTH are real numbers.

Answer

All integers are rational numbers.

8th Grade Math STAAR Fluency

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