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4 years ago

Do you think this graph looks more like a quadratic or exponential function? Why do you think so?

Mathematics

1 answer:

pantera1 [17]4 years ago

3 0

Answer:

Exponential Function

Step-by-step explanation:

The y-axis represents the number of Bacteria and x-axis represents the number of hours. If you observe closely you will see that the number of bacteria are doubling after each hour. For example, at time = 4 hours the number of Bacteria were about 50, at time = 5 hours the number of Bacteria were about 100 and at time = 6 hours the number of Bacteria increased to about 200.

This type of behavior is a property of exponential functions where we see a multiplicative rate of change in the values i.e. each value is a multiple of previous value. A rough model for this function would be:

$f(x)=f(0)(2)^{x}$

Where, f(0) represents the number of bacteria at time = 0 hours i.e. number of Bacteria initially present and "x" represents the number of hours.

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How can you use rates to determine wheather a situation is a proportional relationship

svp [43]

If the rate is a constant, the relationship is proportional. (The rate is the constant of porportionality.)

_____

For two or more points on the function curve, divide the dependent variable value by the independent one. If you get the same result in every case, the relationship is porportional.

___

Note

For some non-proportional relationships, it is possible to find points on the graph that will pass the above test. If you suspect the relationship is actually not one of proportionality, try more points. Check also to make sure that (0, 0) is on the curve.

7 0

3 years ago

The vertices of APQR are P(-3, 8) Q(-6,-4), and R(1, 1). If you reflect APQR across the x-axis, what will be the coordinates of

Ymorist [56]

Answer:(-3,-8),(-6,4),(1,-1)

Step-by-step explanation:

Given

Vertices of the triangle are

$P(-3,8), Q(-6,-4),R(1,1)$

Coordinates (a,b) when reflected about x-axis is given as (a,-b) i.e. Y coordinate changes its sign

$\therefore P\rightarrow P'(-3,-8)\\\Rightarrow Q\rightarrow Q'(-6,4)\\\Rightarrow R\rightarrow R'(1,-1)$

4 0

3 years ago

Answers please! I’m finding the volume and i don’t really get it

MrRa [10]

Answer:

V = 13/2

Step-by-step explanation:

When finding volume you must know the formula on doing so.

Volume = length × width × height

length = $2\frac{1}{2}$ --> $\frac{5}{2}$

width = $2\frac{1}{2}$ --> $\frac{5}{2}$

height = $3\frac{1}{4}$ --> $\frac{13}{4}$

mixed number --> fraction

$V = \frac{5}{2} x \frac{5}{2} x \frac{13}{4}$

$V = \frac{25}{4} x \frac{13}{4}$

$V = \frac{325}{8}$ or $\frac{13}{2}$

3 0

3 years ago

Please Help Evaluate 5c - 3d + 11 when c=7 and d=8

allochka39001 [22]

The answer would be 22.

You would use the order of operations to solve this problem,

First you do the parenthesis, there are none so you skip this

Then the exponents, none so skip it

Then you do multiplication and division from left to right

5•7 is 35, 3•8 is 24

So the problem is now
35-24+11

After multiplication comes addition and subtraction from left to right

35-24 is 11
11+11 = 22

So the answer to (5x7)-(3x8)+11 is 22

3 0

3 years ago

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a_sh-v [17]

$\huge \bf༆ Answer ༄$