Interpreting Graphs of Functions in Algebra 1

This video tutorial covers interpreting graphs of functions, focusing on key concepts such as linear and non-linear graphs, intercepts, line symmetry, positive and negative sections, increasing and decreasing trends, relative extrema, and end behavior. The tutorial uses examples like David's savings and the height of a golf ball to illustrate these concepts, providing a comprehensive understanding of graph properties.

What type of graph is represented by a straight line?

• Quadratic

• Linear

• Non-linear

• Exponential

In the context of graphs, what is an intercept?

• A point where the graph is symmetrical

• A point where the graph reaches its maximum value

• A point where the graph crosses the x-axis or y-axis

• A point where the graph changes direction

Where does the graph of David's savings for a car cross the y-axis?

• At 0

• At 120

• It does not cross the y-axis

• At 1400

What is the equation of the line of symmetry for a parabola that crosses the x-axis at 60?

• x = 0

• y = 0

• x = 60

• y = 60

Which part of the graph is considered positive?

• The part to the right of the y-axis

• The part below the x-axis

• The part to the left of the y-axis

• The part above the x-axis

In the height of a golf ball graph, during which interval is the graph increasing?

• From 120 to 180

• From 0 to 60

• From 0 to 120

• From 60 to 120

What is a relative extrema?

• A point where the graph is symmetrical

• A point where the graph crosses the y-axis

• A point where the graph crosses the x-axis

• A highest or lowest point in a specific interval

What is the end behavior of the graph of David's savings for a car?

• As weeks increase, savings decrease

• As weeks increase, savings increase

• As weeks increase, savings remain constant

• As weeks increase, savings fluctuate

At what point does the height of the golf ball reach its maximum?

• At x = 0

• At x = 60

• At x = 120

• At x = 150

What is the y-intercept of the graph representing the right whale population?

• 640

• 320

• 10

• 240