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3 years ago

What is the answer to y-2x=2

Mathematics

2 answers:

OleMash [197]3 years ago

7 0

Y - 2x = 2 ....put in y = mx + b form
y = 2x + 2

In y = mx + b form, the slope will be in the m position and the y intercept will be in the b position.

y = 2x + 2.....so we have a slope(m) of 2, and a y int (b) = (0,2)

the x intercept can be found by subbing in 0 for y and solving for x
0 = 2x + 2
-2x = 2
x = -2/2
x = -1......so the x int is (-1,0)

go ahead and plot ur intercepts....(-1,0) and (0,2)......and since ur slope is 2, start at (-1,0) and go up 2 spaces and to the right 1 space, then up 2 and to the right 1........thats ur line and it crosses the y axis at (0,2)

postnew [5]3 years ago

5 0

Attached below is a picture of what the graph should look like. What I did was set the equation equal to y like this:

y - 2x = 2...................................................................Add 2x to both sides

y = 2x + 2..................................................................Now just plug numbers in x values and find out what y would equal according to the x values given

For example:

If x = 0:

y = 2(0) + 2

y = 2

That means that your ordered pair is (0,2)

Continue with this to find at least 3 or 4 ordered pairs and then graph and connect the dots to make your line :)

I hope this helped!! Have an amazing day!! :D

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nalin [4]

Answer:

10.95 miles

Step-by-step explanation:

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3 years ago

In a recent survey, 60% of the community favored building a health center in their neighborhood. If 14 citizens are chosen, find

andreev551 [17]

Answer:

Probability that exactly 5 of them favor the building of the health center is 0.0408.

Step-by-step explanation:

We are given that in a recent survey, 60% of the community favored building a health center in their neighborhood.

Also, 14 citizens are chosen.

The above situation can be represented through Binomial distribution;

$P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....$

where, n = number of trials (samples) taken = 14 citizens

r = number of success = exactly 5

p = probability of success which in our question is % of the community

favored building a health center in their neighborhood, i.e; 60%

<em>LET X = Number of citizens who favored building of the health center.</em>

So, it means X ~ $Binom(n=14, p=0.60)$

Now, Probability that exactly 5 of them favor the building of the health center is given by = P(X = 5)

P(X = 5) = $\binom{14}{5} \times 0.60^{5} \times (1-0.60)^{14-5}$

= $2002 \times 0.60^{5} \times 0.40^{9}$

= 0.0408

Therefore, Probability that exactly 5 of them favor the building of the health center is 0.0408.

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