How do you graph y=0.25x+40

2 answers:

8 0

It might help if you create a table....
When x is 0, y is 40
When x is 1, y is 40.25
When x is 2, y is 40.50
When x is 3, y is 40.75
When x is 4, y is 41

Draw the quadrant 1 of the graph since you don’t really need any negative number unless you want to show them then draw the hole thing.
The y scale should start at 40 so draw an equal sign going through the line showing you skip all the number between 0-39 to get to 40. And from there you could start going up by 1 or .25 however you want to scale it
The x scale should just go by one
Staring at the origin (0,0) go up to 40 on the y and make a dot than move to x is 1 and follow what I wrote above for like a table and you’ll see the trend

Feel free to leave a comment asking anymore questions you have about this

netineya [11]4 years ago

5 0

Answer:

Step-by-step explanation:first you do -25 then go up by 40

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If a procedure meets all of the conditions of a binomial distribution except the number of trials is not fixed, then the geomet

morpeh [17]

Answer:

The probability is 0.0428

Step-by-step explanation:

First, let's remember that the binomial distribution is given by the formula:

$P(X=k) =\left[\begin{array}{ccc}n\\k\end{array}\right] p^{k}(1-p)^{n-k}$ where k is the number of successes in n trials and p is the probability of success.

However, the problem tells us that when there isn't a number of trials fixed, we can use the geometric distribution and the formula for getting the first success on the xth trial becomes:

$P(X=x) = p(1-p)^{x-1}\\$

The problem asks us to find the probability of the first success on the 4th trial (given that the first subject to be a universal blood donor will be the fourth person selected)

Using this formula with the parameters given, we have:

p = 0.05

x = 4

Substituting these parameters in the formula and solving it, we get:

$P(X=4) = 0.05(1-0.05)^{4-1}\\P(X=4) = 0.05 (0.95)^{3}\\P(X=4) = 0.05(.8573)\\P(X=4) = 0.0428$