Number Properties

Question 1

When working with inequalities where the product of 2+ variables is compared to 0…

Z^2(y)<0

Answer 1

…remove the even powered terms to simplify the expression

Z^2(y) < 0 becomes y<0

Question 2

To take the distance between two points

Answer 2

Take the absolute value of their difference

(Distance between -4 and 5 = |-4-5| = |-9| = 9

Question 3

To solve the distance between 2 points that involve intervals with even numbers

Answer 3

Distance/ Number of intervalos = Length of interval

Question 4

Number of tick marks in relation to intervals (on a number line)

Answer 4

Number of tick marks will always be 1 greater than number of intervals

Question 5

If the order of points on a number line is not mentioned…

Answer 5

…do not assume a specific order,

Could be A, B, C, could be A, C, B, etc.

Question 6

Zero is an

Answer 6

Even integer