Slopes and Intercepts Application in Real Life

In slope intercept form (y=mx+b) what is the "m"?

• The y-intercept

• The x-intercept

• The slope (rate of change)

• A point

In slope intercept form (y=mx+b) what is the "b"?

• The y-intercept

• The x-intercept

• The slope (rate of change)

• A point

What is the slope in the picture?

• Positive

• Negative

• Zero

• Undefined

What is the slope in the picture?

• Positive

• Negative

• Zero

• Undefined

The equation y = 50x + 2,500 represents the altitude of a plane y after x minutes. Interpret the y-intercept.

• The plane is rising 50 feet per minute.

• The plane is rising 2,500 feet per minute.

• The plane started at 2,500 feet.

• The plane is descending 50 feet per minute.

The equation y = -20x + 400 represents the amount of money y in a bank account after x weeks. Interpret the y-intercept.

• The person saves $20 a week.

• The person spends $20 a week.

• The person started with $400

• The person saves $400 a week.

What does the slope mean in this situation?

• The initial height of the water.

• The rate the water drained every minute

The Southeast Polk Junior High teachers go to the Bowl-O-Rama on Friday after school.The cost to bowl per game is $3 and to rent shoes for the night is $2. What represents the slope?

• Number of teachers

• Cost per game

• Cost for shoes

• Number of games

• When there are zero visitors, we predict negative 75 degrees that day on the beach.  

• When the temperate is zero, we predict negative 75 visitors on the beach.  

• When the temperate is zero, there will be negative 75 visitors on the beach.  

• There is no y-intercept

The equation y = 2.5x + 9 the cost of a pizza y where x is the number of extra toppings. Interpret the y-intercept.

• A topping is $9

• Each extra topping costs $2.50

• The cost of a pizza starts at $9.

• The pizza costs $2.50