The video tutorial covers key features of graphs of linear functions, focusing on slope and intercepts. It explains how to graph linear equations using the slope-intercept form and analyzes graphs for discrete and continuous data. The tutorial also includes real-world applications and word problems to illustrate the concepts.

What is the slope-intercept form of a linear equation?

• b = mx + y

• y = mx + b

• y = b + mx

• x = my + b

In the equation y = mx + b, what does 'b' represent?

• Origin

• Y-intercept

• Slope

• X-intercept

Where does the y-intercept occur on a graph?

• Where the line crosses the x-axis

• Where the line crosses the y-axis

• At the origin

• At the highest point of the line

What is the mnemonic used to remember the x-intercept?

• X is for intercept

• Cross at zero

• Zero's last name is zero

• X marks the spot

How do you calculate the slope using two points?

• Subtract the x-values

• Run over rise

• Rise over run

• Divide the y-values

Why is it preferred to write slopes as fractions when graphing?

• Fractions are easier to calculate

• Fractions are easier to graph

• Fractions are more accurate

• Fractions are simpler

What does a negative slope indicate about the direction of a line?

• The line is horizontal

• The line is vertical

• The line goes downhill

• The line goes uphill

How can you determine if data is discrete or continuous?

• By looking at the intercepts

• By calculating the domain

• By examining the situation

• By checking the slope

What is the significance of a zero in a graph?

• It represents the y-intercept

• It is where the line crosses the x-axis

• It is the highest point on the graph

• It is the midpoint of the line

How do you find the zero of an equation?

• Calculate the slope

• Set y to zero and solve for x

• Find the midpoint

• Set x to zero and solve for y