Linear Equations

What is the slope of y = 1x - 7

• 7

• 1

• -7

• -1

What does the slope represent?

• The rate of change between two variables

• The point where the line crosses the y-axis

• The maximum value of the function

• The minimum value of the function

What is the y-intercept?

• The point where the line crosses the x-axis

• The point where the line crosses the y-axis

• The slope of the line

• The origin of the graph

A pizza delivery service charges a base fee of $3 plus $1.50 for each pizza ordered. The total charge Y for X pizzas is given by the equation: y = 1.5x + 3.

What is the Slope?

• -1.5

• -3

• 1.5

• 3

A pizza delivery service charges a base fee of $3 plus $1.50 for each pizza ordered. The equation gives the total charge Y for X pizzas: y = 1.5x + 3.

What is the y-intercept?

• -1.5

• -3

• 1.5

• 3

A pizza delivery service charges a base fee of $3 plus $1.50 for each pizza ordered. The equation gives the total charge Y for X pizzas: y = 1.5x + 3.

What Does the Slope Mean?

• Base fee for delivery

• Charge for each additional pizza

• Number of pizzas ordered

A pizza delivery service charges a base fee of $3 plus $1.50 for each pizza ordered. The equation gives the total charge Y for X pizzas: y = 1.5x + 3.

What Does the Y-Intercept Mean?

• Base fee for delivery

• Charge for each additional pizza

• Number of pizzas ordered

A pizza delivery service charges a base fee of $3 plus $1.50 for each pizza ordered. The equation gives the total charge Y for X pizzas: y = 1.5x + 3.

If 7 pizzas are ordered, what is the total charge?

• $13.50

• $18.00

• $12.50

• $13.00

What is a reasonable domain for the number of pizzas ordered?

• any positive integer

• any number

• negative numbers

For the domain of pizzas ordered between 0 and 10, what is the range of charges?

• $0 to $18

• $3 to $18

• $0 to $3

• $3 to $30