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Harrizon [31]
3 years ago
9

Graph y=2x+3 Pls give me an explanation while u answer

Mathematics
1 answer:
Serggg [28]3 years ago
8 0
Functions like these are just mattress of plugging in.

Graph: y = 2x+3

Let's just take five numbers: -2, -1, 0, 1, 2

Make a table like the disclosed image, but replace the function at the top-middle with:

y = 2x + 3

Go through each equation by replacing the 'x' in each equation with the given number.

Example:

Number: -2

Function: y = 2x + 3

Plug-in: y = 2(-2) + 3

Simplify: y = -4 + 3

Simplify: y = -1

Repeat this with -1, 0, 1, and 2 to draw the function.

I also recommend the FREE app Desmos, which acts as a grading calculator

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10 points
Ket [755]

Answer:

9/50  or 0.18

Step-by-step explanation:

7 0
3 years ago
Graph the inequality.<br> 1
Mrrafil [7]

Answer:

hope it helps

Step-by-step explanation:

6 0
2 years ago
In 1990, 1000 adults were randomly selected and each was asked if they smoked, 300
Oduvanchick [21]

Answer:

 The proportion of smokers was higher in 1990 than in 2000

Step-by-step explanation:

Solution

Recall that,

The total number of sample 1 (n1) = 1000

Total  sample 2 number  (n2) = 2000

The number of favourable events (X1) = 300

The number of favourable events (X2) = 500

so,

p₁ = X₁/n₁ = 300/1000 = 0.3

p₂ = X₂/n₂ =500/2000 =0.25

α = 0.05

We are interested in testing the hypothesis.

The  hypothesis (Null) ....>  H₀ : p₁ = p₂

Alternate hypothesis------ > H₁ : p₁ > p₂

Thus,

P = X₁ + X₂/ n₁ + n₂

P =300 + 500/1000 +2000

P =800/3000

=0.2667

Now,

Z₀ = P₁ - P₂/√ P (1 -P) (1/n₁ + 1/n₂)

Z₀ =  0.3 - 0.25/√0.2667  (1 - 0.2667) (1/1000 + 1/2000)

Z₀ = 0.4999999999999999/√ 0.2667 (0.7333000000000001) (0.001 +0.0005)

Then,

Z₀ = 0.4999999999999999/√0.00029335666500000004

Z₀ = 2.9193

so,

zα/2 = z0.05/2 =z0.025

zα/2 = 1.6448536269514722

Now, we apply the decision rule:

Decision Rule: Reject the null hypothesis if the statistic value test is higher than the critical value 1.6448536269514722

The statistic value, 2.9193 is greater than the critical value 1.6448536269514722,  then we will reject the null hypothesis.

Therefore, the proportion of smokers was higher in 1990 than in 2000

3 0
2 years ago
I will mark brainliest but please help I don’t get this question...
ElenaW [278]
The slope is 1/4......
5 0
2 years ago
A weighted coin has a 0.599 probability of landing on heads. What is the probability that it takes 5 flips for the first head to
natka813 [3]

Answer:

0.411^5 times 0.599

Step-by-step explanation:

0.599 chance of landing on heads.

0.411 chance of not landing on heads.

0.411 times 0.411 times 0.411 times 0.411 times 0.411 (for the 5 flips that do not land on heads) times 0.599 (for the time that it does land on heads).

6 0
2 years ago
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