AP Precalculus Unit 1- 2A Review

Front

The slope can also be called...

Back

the rate of change.

Tags

CCSS.8.EE.B.5

Front

Calculate the average rate of change from 20 to 40 minutes.

Back

-2 gallons per minute.

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Front

Assuming the scale is 1, where is f(x) > 0?

Back

(-4, -1) U (2, +oo).

Tags

CCSS.HSA.REI.D.12

Front

Over what intervals is the average rate of change decreasing?

Back

(-∞, 1).

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Front

When is a function considered positive?

Back

When its y values are above the x-axis.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Front

What is the definition of slope in a linear function?

Back

The slope is the ratio of the rise (change in y) to the run (change in x).

Tags

CCSS.8.EE.B.5

Front

How do you calculate the average rate of change between two points?

Back

(f(b) - f(a)) / (b - a), where a and b are the x-values.

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Front

What does it mean for a function to be increasing?

Back

A function is increasing if its output values (y-values) rise as the input values (x-values) increase.

Front

What is the significance of the x-axis in relation to function values?

Back

The x-axis represents the input values, and the function is positive when it is above this axis.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Front

What is the interval notation for all real numbers?

Back

(-∞, +∞).

Tags

CCSS.6.EE.B.8