Exploring Key Features of Linear Functions

What are the four terms that can describe an x-intercept?

• Root, Zero, X-Intercept, Solution

• Peak, Valley, X-Intercept, Null

• Maximum, Minimum, X-Intercept, Point

• Rise, Run, X-Intercept, Cross

How is the y-intercept of a graph represented in an ordered pair?

• (x-value, 0)

• (y-value, 0)

• (0, x-value)

• (0, y-value)

What does the slope of a line indicate?

• The horizontal shift of a line

• The vertical shift of a line

• The rate of change of the line

• The intercept points of the line

What does a y-intercept of (0, 25) indicate in a real-world scenario?

• A starting amount of $25

• 25 hours of work

• A charge of $25 per hour

• 25 units of product

How is the slope calculated using two points on a line?

• (Y2 - Y1) / (X2 - X1)

• (X2 - X1) / (Y2 - Y1)

• (Y1 - Y2) * (X1 - X2)

• (X1 - X2) * (Y1 - Y2)

What does a negative slope indicate about a line?

• The line is rising from left to right

• The line is falling from left to right

• The line is horizontal

• The line is vertical

In the context of the babysitter example, what does the slope represent?

• Total earnings after two hours

• The flat service fee

• Earnings per hour

• Total hours worked

What does the y-intercept represent in the babysitter example?

• Earnings per hour

• Total hours worked

• Total earnings after two hours

• The flat service fee

What does a y-intercept of 400 gallons indicate in the airplane fuel scenario?

• Fuel consumption per hour

• Total flight hours

• Initial fuel quantity

• Fuel efficiency

What does a slope of -50 represent in the airplane fuel scenario?

• Losing 50 gallons of fuel per hour

• Fuel efficiency over 50 hours

• Total fuel for 50 hours

• Gaining 50 gallons of fuel per hour