8th Grade math

rational & irrational numbers

100

Is the following number rational or irrational? (77/3) 

Rational

200

The sum of a rational number and an irrational number is always.

irrational number 

300

Which of the following is an irrational number? 

400

What type of decimal number is an irrational number?

non terminating, non repeating 

500

-17.565 

Rational or Irrational ?

Rational

exponents

100

Simplify the following:
y6/y4

y²

200

find the length of the missing side 

52 cm

300

According to exponent rules, when we divide powers we _______ the exponents.

Subtract 

400

9^{3 .} 9^{4 =} 9¹²     

True or False 

False 

500

Write the following as an exponent:
7x7x7x7x7

7⁵

functions

100

What is the definition of function?

Every input has only ONE output

200

Is the relation a function?{(1,5),(1,7),(3,9),(4,11)}

No

300

Does this mapping diagram represent a function?

Yes, because each input goes to one and only one output

400

Which example is not a function?

Example 2 

500

Which graph does NOT pass the vertical line test?

Graph 1 

Pythagorean theorem

100

Find the length of the missing side.

13 cm 

200

Side A on a right triangle is ALWAYS the longest side.

True or false 

false

300

The Pythagorean Theorem is
a2 + b2 + c2

no

400

Solve for c.

13

500

a = 2.1, b = 7.2, c = 7.5
Is this a right triangle?

yes

formulas

100

What is the y-intercept

Let x equal 0

200

What is direct variation form?

y=kx

300

What is the standard form of a linear equation?

Ax+By=c

400

What is slope-intercept form?

y=mx+b

500

How do I find the x-intercept?

let y equal 0