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Tju [1.3M]
2 years ago
6

Does this graph show a function? Explain how you know.

Mathematics
1 answer:
LekaFEV [45]2 years ago
6 0

Answer:

A

Step-by-step explanation:

It may look like it failed but it didn't. Nun of the points duplicate

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PLEASE PLEASE HELP ill give FREE points plus BRAINLIEST !!
Tanya [424]

Answer:b

Step-by-step explanation:

7 0
3 years ago
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Write an exponential function for graph that passes through the following points (-3,80);(-1,20)
padilas [110]

Answer:

y

=

4

(

1

2

)

x

Explanation:

An exponential function is in the general form

y

=

a

(

b

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x

We know the points

(

−

1

,

8

)

and

(

1

,

2

)

, so the following are true:

8

=

a

(

b

−

1

)

=

a

b

2

=

a

(

b

1

)

=

a

b

Multiply both sides of the first equation by

b

to find that

8

b

=

a

Plug this into the second equation and solve for

b

:

2

=

(

8

b

)

b

2

=

8

b

2

b

2

=

1

4

b

=

±

1

2

Two equations seem to be possible here. Plug both values of

b

into the either equation to find

a

. I'll use the second equation for simpler algebra.

If

b

=

1

2

:

2

=

a

(

1

2

)

a

=

4

Giving us the equation:

y

=

4

(

1

2

)

x

If

b

=

−

1

2

:

2

=

a

(

−

1

2

)

a

=

−

4

Giving us the equation:

y

=

−

4

(

−

1

2

)

x

However! In an exponential function,

b

>

0

, otherwise many issues arise when trying to graph the function.

The only valid function is

y

=

4

(

1

2

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x

7 0
3 years ago
Need help with 1 and 2 please
Rom4ik [11]

Answer:

calculator

Step-by-step explanation:

calculator

7 0
3 years ago
What is the answer to 2a + 3b =
Rainbow [258]

Answer:

2a+3b

Step-by-step explanation:

There wouldn't be a simplfied answer or solution if you don't have a solution for either a or b or both. And they are not like terms, so you can't add them together.

So the answer is 2a + 3b.

I hope this helps!

Have a great day!

6 0
2 years ago
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Two times the quantity<br> three more than x is nine
Yuki888 [10]

Answer:

X = 1.5 if that is your question

Step-by-step explanation:

8 0
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