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OLga [1]
1 year ago
13

Determine whether each function is an example of exponential growth or decay. Then, find the y -intercept. y=0.5(1/4) x

Mathematics
1 answer:
lutik1710 [3]1 year ago
3 0

4x you had  0.5x are the y -intercept.

How can you tell whether an exponential function is growing or deteriorating?

  • As the exponential's base is greater than 1, which occurs when those numbers increase, we are seeing exponential growth.
  • When the exponential's base is between 1 and 0, and those numbers decrease, we have exponential decay.

You can obviously plot it but if you can also conside that in your function you have 4x

; this tells you that as

x increases (gets bigger) certainly

4x will increase as well (you can consider

4²= 16 and 4³ = 64

). It is true that you have to multiply by

0.5

but nevertheless the entire function will grow anyway!

Graphically:

graph{0.5*(4^x) [-14.24, 14.24, -7.12, 7.12]}

If you want, try to think at the case where instead of having

4x you had  0.5x .

Learn more about exponential function

brainly.com/question/14355665

#SPJ4

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Sven got money for his birthday. He spent $12 of the money and now has $28 left. Write and solve an equation to find out how muc
Dennis_Churaev [7]

Answer:

Equation

28  =  X - 12

Solve for X

Isolate the X

28+12 = X

40 = X

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
SAVINGS ACCOUNT
yarga [219]

Answer:

$4000 was invested at 4%, 2500 was invested at 3%

Step-by-step explanation:

First and foremost the question has to be define.

Total amount raised is $6500

Savings account percentage simple interest =3%

Government Bond: 4% simple interest

Equation for amount invested at each rate:

(6500-x)0.03 + 0.04x = 235

195 - 0.03x + 0.04x = 235

0.01x = 40

x = 4000

$4000 was invested at 4%, 2500 was invested at 3%

4 0
3 years ago
Please help with question 6, 7, 8, and 9 about rational and irrational numbers
aliina [53]
6. When we multiply two surdic integers, we can leave it into one big surd.
For instance, if we have:

\sqrt{a} \cdot \sqrt{b}, we can simplify it down to one uniform square root sign, \sqrt{ab}.

So, we can say: 3\sqrt{2} \cdot 8\sqrt{18} = 24\sqrt{36}, which is a rational root, because the square root of 36 can be converted into an integer, namely 6 and -6.

Hence, it is a rational root.

7. The summation, on the other hand, cannot be simplified any further, so it will stay as irrational. This is because √2 is already an irrational root, and adding it onto a number that is rational will stay as irrational.

8. Once again, the summation cannot be simplified. We can only simplify by factoring like terms. Hence, this must be irrational.

9. Even if it is in fractional notation, √5 can never be a rational number because no two integers when multiplied by itself will give 5. So, even if it is written in fractional form, they cannot be rational if there is an already irrational term in it.
4 0
4 years ago
Find the opposite of: - 4x2 - 4x + 2
vladimir2022 [97]

Answer:

4x² + 4x - 2

Step-by-step explanation:

The opposite is the negative value

The opposite of - 4x² - 4x + 2 is

- (- 4x² - 4x + 2) ← distribute parenthesis by - 1

= 4x² + 4x - 2

8 0
3 years ago
H(x) = x + 1 k(x) = x - 2 (h + k)(2) =​
barxatty [35]

h(x) = x + 1

k(x) = x - 2

_________________________________

(h + k)(x) = h(x) + k(x)

(h + k)(x) = (x + 1) + (x - 2) \\

(h + k)(x) = x + 1 + x - 2

(h + k)(x) = 2x - 1

(h + k)(2) = 2(2) - 1

(h + k)(2) = 4 - 1

(h + k)(2) = 3

_________________________________

And we're done.....♥️♥️♥️♥️♥️

4 0
3 years ago
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