Which graph represents the piecewise-defined function?

Mathematics

2 answers:

Mrac [35]2 years ago

8 0

Answer:

LAST GRAPH is right

Step-by-step explanation

kifflom [539]2 years ago

5 0

Answer: The first option is correct.

Explanation:

The given piecewise function is,

$y=\begin{cases}-\frac{4}{5}x-3 & \text{ if } x$

From the piecewise function we can say that if x<0, then

$f(x)=-\frac{4}{5}x-3$

If $x\geq2$ , then

$f(x)=3x-10$

Since the f(x) is defined for x<0 and $x\geq2$ , therefore the function f(x) is not defined for $0\leq x$ .

In the graph 2, 3 and 4 for each value of x there exist a unique value of y, therefore the function is defined for all values of x, which is not true according to the given piecewise function.

Only in figure the value of y not exist when x lies between 0 to 2, including 0. It means the function is not defined for $0\leq x$ , hence the first option is correct.

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galina1969 [7]

Part A:
First, we will need to compute the area of the lawn.
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Area of rectangle = length * width
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Now, we will compute the number of ounces.
We are given that:
<span>Each ounce of grass seed will cover 120 square feet. Therefore, to know the number of ounces needed to cover 5400 square feet, all we have to do is cross multiplication as follows:
1 ounce ---------> 120 square feet
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Part B:
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We know that each bag weighs one pound, therefore:
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7 0

2 years ago

Read 2 more answers

Can someone plz help me with this math problem.

Anettt [7]

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