# Graphs Flashcards

What is the Vertical axis of a scatter plot called?

What is its function?

Y-axis

Dependent Variable

What is the horizontal axis called on a scatter plot?

It’s function

X-axis

Independient variable

Types of line (forms) of Scatterplots Define:

Linear Positive/ Negative

Quadratic

No Association

Linear Positive = Straight Line Upwards

Linear Negative = Straight Line Downwards

Quadratic = U shapped curve

No Association = Just dots all over No relationship

Which are the 4 ways we describe a scatterplot

Form: Linear association or non linear

Direction: is the association positive or negative

Strength: Is the association Strong, Moderate, or Weak

Outliers: Are there outlayers

Describe a Left Skewed Bar Graph.

Where are the Highest data & Lowest data

Describe a Right Skewed Bar Graph

Left Skewed

The Highest are on the Right and it gets progressively lower towards the Right.

Right Skewed:

Highest Data on the Left and its gets smaller towards the right

Describe a symmetrical & Bimodal Bar Graph.

Which shapes do they look like

Or features do they have

Symmetrical look like a pyramid

Bimodal is symmetrical but has 2 peaks

A positive covariance between 2 variables reveals that both variables tend to increase together

True or false

True

A study found that the more telephones present in a house hold the higher incidence of cancer. It would be said the relationship between phones and cancer is

Positive covariance

Negative covariance

No cause and effect relationship

Positive covariance

If the line on a scatterot goes in a downward direction it is said that it has a Positive Covariance

If the line on a scatterplot goes in an upward direction it is said to be a Negative Covariance

True or False

False

What is the difference between inequalities and equations

Which sign does the inequality use.

Inequalities solve for a range of equalities

Equation solves for 1 number

X > 4 or Y < 1

X- intercept: Define

Location on the coordinate plane where our graph crosses the x - axis

Y-intercept: Define

Location on the coordinate plane where our graph crosses the y - axis

2x + 5y = -20

Find the “x” axis

To find “x” axis “y” equals 0

2x + 0 = -20

-20 ÷ 2= -10

2x + 5y = -20

Find the “y” intercept

To find “y” intercept; “x” intercept is equal to 0.

2 (0) + 5y = - 20

5y = -20

-4

How to know when a graphing line passes through the origin

The result will be “0”

Exp. ax + by = 0