Basics

Question 1

Name Transitive property with a,b,c

Answer 1

If a = b and b = c, then a = c.

Question 2

What is a Cartesian coordinate pair?

Answer 2

a coordinate pair (x, y)

Question 3

A relation is a set of ordered pais. How is it notated?

Answer 3

{ }

Question 4

What are domain and range in relations with ordered pairs?

Answer 4

domains are inputs(x-values) and range are outputs(y)

Question 5

find the distance, d, between the two points (x1, y1) and (x2, y2)

Answer 5

d= SR(X2-X1)2+(y2-y1)2

Question 6

Finding the midpoint?

Answer 6

M= (x1+x2, y1+y2)
____ ____
2 2

give result as ordered pair

Question 7

Solving inequalities when absolute value is involved.
What happens with |ax ± b| < c?
What happens with |ax ± b| > c?

Answer 7

• becomes two inequalities:
  ax ± b < c AND ax ± b > –c
• ax ± b > c OR ax ± b < –c

Question 8

Interval notation

• what does (–∞, –4)(–2, ∞) mean
• what does (–∞, –4)U(–2, ∞) mean

Answer 8

like this (–∞, –4)

• the union symbol AND means that the solution can belong to either interval.
• OR

Question 9

Rewrite 3SR82 #3 as radical index and 82 is under SR# with only an exponent

Answer 9

8**2/3

Fractional exponents are roots and nothing else.

Question 10

don’t leave radicals in the denominator of an expression when you write it in its final form.

• 2/SR3?
• 1/SR5 - 2

Answer 10

• Multiply both sides with SR3, so you get 2SR3/3
• Multiplying a number by its conjugate
• multiply the top and bottom by the conjugate of it, which is SR5 + 2 … result: SR5+2/5-4, so SR5+2