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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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I'd seriously appreciate it if anyone could help ASAP! :) I'll give Brainliest!
Jet001 [13]

We have been given a graph of function g(x) which is a transformation of the function f(x)=3^x

Now we have to find the equation of g(x)

Usually transformation involves shifting or stretching so we can use the graph to identify the transformation.


First you should check the graph of f(x)=3^x

You will notice that it is always above x-axis (equation is x=0). Because x-axis acts as horizontal asymptote.

Now the given graph has asymptote at x=-2

which is just 2 unit down from the original asymptote x=0

so that means we need shift f(x), 2 unit down hence we get:

y=3^x


but that will disturb the y-intercept (0,1)

if we multiply 3^x by 3 again then the y-intercept will remain (0,1)

Hence final equation for g(x) will be:

g(x)=3(3^x)-2


6 0
3 years ago
The ticket price for an ice hockey match used to cost £19.60. The price has now increased by 12.5%. How much will 2 tickets cost
Amanda [17]

Answer:

The 2 tickets will cost £44.10 after the increase.

Step-by-step explanation:

First, you have to multiply £19.60 by 12.5% to find the increase in the cost of tickets.

19.60(0.125)=2.45

Add the price increase to the original cost to find the new cost of each ticket.

19.60+2.45=22.05

Multiply the result by 2 since you have to look for the cost of the 2 tickets.

22.05(2)=44.10

8 0
3 years ago
True or False: Only fractions with a denominator greater than the numerator can be converted to a decimal.
polet [3.4K]

Answer:

False!!

Step-by-step explanation:

You can turn any fraction into a decimal! Correct me if I'm wrong!

4 0
3 years ago
Read 2 more answers
Are a total of 127 Cars And trucks on a lot. If there. For more than twice the number of trucks, then cars, how many cars and tr
kow [346]

Answer:

41 cars and 86 trucks

Step-by-step explanation:

C+T=127

2C+4=T

C+(2C+4)=127

3C+4=127

3C=123

C=41When C=41,

41+T=127

T=127-41

T=86

3 0
3 years ago
Todd has 2 frogs. This is 1/3 the number of frogs that Heather has. How many frogs does Heather have?
Murljashka [212]
2=1/3H
H=2*3
Heather has 6 frogs
5 0
4 years ago
Read 2 more answers
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