Functions in Graph

What is the function that matches the graph? 

• f(x)=-x^2+8x-2

• f(x)=x^2+8x-2

• f(x)=-x^2-8x-2

• f(x)=-x^2+8x+2

A parabola reflects over? 

• the y-intercept

• the axis of symmetry 

• the maximum

• the minimum

A maximum is the _____________ point of the function. 

• highest

• lowest

A minimum is the ______________ point of the function. 

• highest

• lowest 

The constant term of a quadratic function is the...?

• vertex

• minimum

• axis of symmetry 

• y-intercept 

Describe the meaning of the rate of change for this graph.

• for every 2 hours, the temp goes up by 1 degree

• the temp increases 2 degrees every hour

• the temp increases 1 degree every 2 hours

What does the slope represent in this situation?

• The sloth runs 1 feet in 3 minutes

• The sloth runs 3 feet in 1 minute

• The sloth runs fast

• The sloth runs 6 feet in 1 minute

What is the meaning of the y-intercept?

• The weight in the bucket increases by 1 pound per pound of sand.

• Before sand is put in the bucket, it weighs 1 pound.

• The starting weight of the sand is 1 pound.

• The weight in the bucket decreases by 1 pound per pound of sand.

The graph shows the candle's height (cm) as it burns (minutes).  What does the slope MEAN?

• The candle burns 1 cm every minute.

• The candle burns 2 cm every 2 minutes.

• The candle burns 2 cm every minute.

• The candle burns 1 cm every 2 minutes.

The graph shows the height (cm) of a candle as it burns, what does the y-intercept mean?

• Candle starts at 9 cm.

• Candle start at 4.5 cm

• Candle starts at 0 cm.

• The candle ends at 5 cm