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6.01 Characteristics of exponential functions

Adaptive
Worksheet

Interactive practice questions

Consider the graph of the equation $y=4^x$y=4x.

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A plot of $y=4^x$y=4x on a Coordinate Plane is an upward-sloping curve that represents exponential growth. As x increases, the y values rise rapidly. The graph passes through the point (0, 1), since $4^0=1$40=1, and approaches the x-axis asymptotically from above as x decreases, but never touches the x-axis. The curve is smooth and continuous.
a

What can we say about the $y$y-value of every point on the graph?

The $y$y-value of most points of the graph is greater than $1$1.

A

The $y$y-value of every point on the graph is positive.

B

The $y$y-value of every point on the graph is an integer.

C

The $y$y-value of most points on the graph is positive, and the $y$y-value at one point is $0$0.

D
b

As the value of $x$x gets large in the negative direction, what do the values of $y$y approach but never quite reach?

$4$4

A

$-4$4

B

$0$0

C
c

What do we call the horizontal line $y=0$y=0, which $y=4^x$y=4x gets closer and closer to but never intersects?

A horizontal asymptote of the curve.

A

An $x$x-intercept of the curve.

B

A $y$y-intercept of the curve.

C
Easy
1min

Consider the function $y=3^x$y=3x.

Easy
2min

Consider the function $y=3^{-x}$y=3x.

Easy
3min

If the graph of $y=2^x$y=2x is moved down by $7$7 units, what is its new equation?

Easy
< 1min
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Outcomes

A2.N.Q.A.1

Use units as a way to understand real-world problems.*

A2.F.IF.A.1

For a function that models a relationship between two quantities, interpret key features of graphs and tables in terms of the quantities, and sketch graphs showing key features given a verbal description of the relationship.*

A2.F.IF.A.2

Calculate and interpret the average rate of change of a function (presented algebraically or as a table) over a specified interval. Estimate and interpret the rate of change from a graph. *

A2.MP1

Make sense of problems and persevere in solving them.

A2.MP2

Reason abstractly and quantitatively.

A2.MP3

Construct viable arguments and critique the reasoning of others.

A2.MP4

Model with mathematics.

A2.MP6

Attend to precision.

A2.MP7

Look for and make use of structure.

A2.MP8

Look for and express regularity in repeated reasoning.

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