CHATPER 1 : The basics

What does X and Y represent in a graph? Which direction do they lay?

X= Time & Horizontal ; Y= Velocity & Vertical

What will a graph show the flood of?

Blood

Unrelated Definition

two items that are not associated or connected in any meaningful way.

Unrelated Example

Coconut & Sardines

Related / Proportional Definition

two items affiliated

Related / Proportional Example

Water & Swimming

Directly Related & Directly Proportional Definition

Two items associated such that when one item increases, the other increases

Directly Related & Directly Proportional Example

when rainfall increases, plant growth increases

Inversely Related / Inversely Proportional Definition

two items associated such that when one item increases, the other decreases

Inversely Related / Inversely Proportional Example

When ADH (anti-diuretic hormone)increases, urine output decreases

Reciprocal Relationship Definition

Special form of inverse relationships

Reciprocal Relationship Example

13=1/13

cholesterol level and longevity ( inversely related, directly related, unrelated)

inversely related; as cholesterol levels increases, life span generally decreases

Smoking and the likelihood of cardiovascular disease. (inversely related, directly related, unrelated)

Directly related; Generally, individuals who smoke are more likely to have cardiovascular diseases.

Years employed and days of vacation earned per year (inversely related, directly related, unrelated)

Directly related. Length of vacation time increases with length of employment

IQ and shoe size (inversely related, directly related, unrelated)

Unrelated ; IQ has no correlation with shoe size.

Caloric intake and weight

Directly proportional; weight increases with the number of calories consumed

hours spent exercising and weight

inversely related; weight decreases with an increase of exercise

Alcohol intake and sobriety

inversely related; as alcohol intake increases, sobriety decreases.

what is the reciprocal of 20?

The reciprocal of 20 is \frac{1}{20} = 1

10⁹ (Prefix and meaning)

Giga (G), Billion

10⁶ (Prefix and Meaning)

Mega (M), Million

10³ (Prefix and meaning)

Kilo (k), Thousand

10² (Prefix and meaning)

Hecto (h), Hundred

10¹ (Prefix and meaning)

Deca (da), Ten

10^-1 (Prefix and meaning)

Deci (d), One-tenth

10^-2 (prefix and meaning)

Centi (c), One-hundredth

10^-3 (Prefix and meaning)

Milli (m), One-thousandth

10^-6 (Prefix and meaning)

Micro (µ), One-millionth

10^-9 (Prefix and menaing)

Nano (n), One-billionth