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3 years ago

Could someone help me with number 19

Mathematics

1 answer:

azamat3 years ago

8 0

Solving #19

Take y-values from the graph

a) (g·f)(-1) = g(f(-1)) = g(1) = 4
b) (g·f)(6) = g(f(6)) = g(2) = 2
c) (f·g)(6) = f(g(6)) = f(5) = 1
d) (f·g)(4) = f(g(4)) = f(2) = -2

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Dimas [21]

The linear function that describes Juan's elevation during his descent is:

B. y = -1460x + 7500.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.

b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

In this problem, each hour, the height decays by 1460, hence the slope is of m = -1460, then:

y = -1460x + b.

The y-intercept is found considering that when x = 1, y = 6040, hence:

b = 6040 + 1460 = 7500.

Which means that option B is correct.

More can be learned about linear functions at brainly.com/question/24808124

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2 years ago

Which of the following points does Not lie on the graph of y =3x

nalin [4]

Answer:

(2,6)

Step-by-step explanation:

The options of the questions are

(0,1) (1,3) (2,6) (3,27)

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we know that

If a ordered pair lie on the graph of the given equation, then the ordered pair must satisfy the given equation

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substitute the value of x and the value of y in the linear equation and then compare the results

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substitute the value of x and the value of y in the linear equation and then compare the results

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3 years ago

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Sergio [31]

Answer:

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