Graphing Functions

What is the general form of a linear function?

• y = ax + b

• y = mx + c

• y = mx - b

• y = mx + b

Explain how to graph a quadratic function.

• Connect the x-intercepts to form a straight line

• Plot the vertex and symmetric points to form a parabolic curve.

• Graph the function as a straight line

• Plot random points and connect them with a curve

Define the term 'slope' in relation to functions.

• The slope of a function is the area under the curve between two points.

• The slope of a function is the ratio of the change in the y-values to the change in the x-values between two points on the function.

• The slope of a function is the number of x-intercepts.

• The slope of a function is the maximum value of the function.

How can you determine the x-intercept of a function graph?

• Set y = 0 and solve for x

• Count the number of grid lines crossed by the graph

• Look for the highest point on the graph

• Set x = 0 and solve for y

Discuss the significance of the vertex in a function graph.

• The vertex represents the average value of the function.

• The vertex has no impact on the function graph.

• The vertex is only relevant in linear functions.

• The vertex is significant as it indicates the extreme point of the function.