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IM A1 U4 L1-14

Last updated about 1 year ago
17 questions
1

The distance a person walks, d, in kilometers, is a function of time, t, in minutes, since the walk begins.

Select all true statements about the input variable of this function.

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1

The height, in feet, of a squirrel running up and down a tree is a function of time, in seconds.

Here are statements describing the squirrel’s movement during four intervals of time. Match each description with a statement about the average rate of change of the function for that interval.

Draggable itemCorresponding Item
The squirrel runs up the tree very fast.
The average rate of change is large and positive.
The squirrel starts and ends at the same height.
The average rate of change is zero.
The squirrel runs down the tree.
The average rate of change is negative.
The squirrel runs up the tree slowly.
The average rate of change is small and positive.
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1

Function f is defined by the equation f(x)=3x-7. Find the value of c so that f(c)=20 is true.

1

Function F gives the cost, in dollars, of buying n apples.
Which statement best represents the meaning of C(10)=9?

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1

Here are four equations of absolute value functions and three coordinate pairs. Each coordinate pair represents the vertex of the graph of an absolute value function.

Match the equation of each function with the coordinates of the vertex of its graph. The vertex coordinates of the graph of one equation are not shown.

Draggable itemCorresponding Item
t(x)=|x|-9
(9,0)
q(x)=|x|+9
(0,9)
p(x)=|x-9|
(-9,0)
r(x) = |x+9|
(0,-9)
1

Here is the graph of a function.
Select the equation for the function represented by the graph.

1

The graph of function f passes through the coordinate points (0,3) and (4,6) .

Use function notation to write the information each point gives us about function .

1

Match each feature of the graph with the corresponding coordinate point.
If the feature does not exist, choose “none”.

Draggable itemCorresponding Item
minimum
(4,16)
Horizontal intercept
(1.5,2)
Vertical intercept
(0,7)
maximum
none
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1

Complete the rule for g(x) so that the graph represents it.

1

Bags of walnuts from a food producer are advertised to weigh 500 grams each. In a certain batch of 20 bags, most bags have an absolute error that is less than 4 grams.

Could this scatter plot represent those 20 bags and their absolute errors? Explain your reasoning.