2.1/2.2: Using Graphs & Patterns and Linear Functions

Front

What is the equation that represents the relationship between the cost (y) and the area (x) for a lawn care company that charges a $10 trip fee plus $0.15 per square foot?

Back

y = 0.15x + 10

Front

In a graph showing distance over time, which point represents when you are walking home after riding with a friend?

Back

Point D

Front

Which direction does the x-axis go?

Back

Left and right

Front

When graphing a coordinate, what direction do you go in second?

Back

Up/down (y-axis)

Front

Which direction does the y-axis go?

Back

Up and down

Front

What is a linear function?

Back

A function that can be graphically represented as a straight line.

Front

What is the slope of a line?

Back

The slope is the ratio of the rise (change in y) over the run (change in x).

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis.

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

Slope = (y2 - y1) / (x2 - x1)