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skad [1K]
3 years ago
7

how would you say "the function is positive from -9 to 3 over the x axis but -9 is not included" using interval notation​

Mathematics
1 answer:
notka56 [123]3 years ago
5 0

Answer:

The function would be positive in:

<u>(-9, 3] </u>

Step-by-step explanation:

A function is considered positive on the X-axis when the changed values ​​in the function are greater than zero.  f(x) > 0

And is considered negative when f(x) < 0.

In this case, the numbers that make the function positive are the numbers from -9 to 3, but not including -9.

This can be written as (-9, 3]

It means that -9 is not taken but any number greater than -9 is.

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The graph of f ′ (x), the derivative of f of x, is continuous for all x and consists of five line segments as shown below. Given
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Answer:

B

Step-by-step explanation:

f(0) - f(-3) = area under f'(x) from x=0 to x=3.

We can find the area under f'(x) in this interval by finding the area of the triangle formed by the line.

A = 1/2 b h

A = 1/2 (3) (3)

A = 4.5

f(0) - f(-3) = 4.5

Since f(0) = 7:

7 - f(-3) = 4.5

f(-3) = 7 - 4.5

f(-3) = 2.5

4 0
3 years ago
A bookstore orders a shipment of books. The books weigh 3.2 lb each. How much will the shipment of 100 books weigh? Write your a
Sonbull [250]

Answer:

3.2 × 10²

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3 years ago
Which is greater 7/8 or 2/3​
andrew11 [14]

Answer:

7/8 is greater.

Step-by-step explanation:

In decimal form, 7/8 is greater than 2/3.

0.875 (7/8)

0.667 (2/3)

6 0
3 years ago
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ira [324]

Answer:

B. slope: 3/2, y-intercept: 5

Step-by-step explanation:

Rewrite in slope-intercept form. The slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.

3 0
3 years ago
A video rental store charges a $20 membership fee and $2.50 for each video rented. If 15 videos are rented what is the revenue?
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