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qwelly [4]
3 years ago
11

Identify the function that is exponential.

Mathematics
1 answer:
den301095 [7]3 years ago
7 0

Please, for clarity, indicate exponentiation using the " ^ " symbol.

y = - 3x^5 ("Negative three times the 5th power of x")

y = 3x^8

y - -3(0.5)^x

y = -2^4

An exponential function has an exponent which is variable, where the base stays constant; the base cannot be a negative number or a zero. The third answer choice is the correct one, as we raise the constant 0.5 to the power x:

y = -3(0.5)^x

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Help! I have looked at so many lessons on writing exponential functions from a graph and nothing has helped.
Over [174]

Answer:

y = 8(-\frac{1}{2})^x

Step-by-step explanation:

Let the equation of the exponential function is,

y = a(b)ˣ

Since the graph of this function passes through two points (4, \frac{1}{2}) and (3, -1)

For the point (4, \frac{1}{2}),

\frac{1}{2}=a(b)^4 ---------(1)

For second point (3, -1),

-1 = a(b)³ ---------(2)

Divide equation (2) by equation (1),

\frac{\frac{1}{2}}{-1} = \frac{a(b)^4}{a(b)^3}

-\frac{1}{2}=b^{(4-3)}

-\frac{1}{2}=b

From equation (2)

-1 = a(-\frac{1}{2})^3

-1 = -\frac{1}{8}a

a = 8

Therefore, equation of the exponential function will be,

y = 8(-\frac{1}{2})^x

4 0
2 years ago
What is the sum of the two vectors (2,-1) and (3,3)?
vagabundo [1.1K]
Answer: (5, 2)

We simply add up the corresponding coordinates. The x coordinates of the two vectors are 2 and 3. They add to 2+3 = 5

The y coordinates are -1 and 3. They add to -1+3 = 2

So overall, 
(2,-1) + (3,3) = (2+3, -1+3) = (5,2)
is the answer
6 0
3 years ago
Read 2 more answers
Remy was on vacation in New France, Canada. He went to the Ratatouille restaurant and had an excellent dinner. How much did
SashulF [63]

Answer:

See both answers in the explanation

Step-by-step explanation:

Given data

Cost of dinner= $32

TIp=18%

Let us find the amount of the tip

=18/100*32

=0.18*32

=$5.76

Hence the total amount paid is

=5.76+32

=$37.76

The Tip is

=$5.76

4 0
3 years ago
Can someone help me !
Xelga [282]

Answer:

its b

Step-by-step explanation:

hope this helps

6 0
3 years ago
Read 2 more answers
What is the area of rectangle ABCD?
kotegsom [21]

The area of a 2D form is the amount of space within its perimeter. The area of the rectangle is 12 units². Thus, the correct option is A.

<h3>What is an area?</h3>

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm2, m2, and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

As per the given information, the graph of the rectangle can be made as shown below. It can be observed from the graph that the length of the rectangle and width of the rectangle are 4 units and 3 units, respectively. Therefore, the area of the rectangle is,

Area = 4 units × 3 units = 12 units²

Hence, the area of the rectangle is 12 units². Thus, the correct option is A.

Learn more about the Area:

brainly.com/question/1631786

#SPj1

3 0
2 years ago
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