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3 years ago

A line passes through (2, 8) and (4, 12). Which equation best represents the line?

Mathematics

2 answers:

Basile [38]3 years ago

6 0

Y=2x+4. I plugged your coordinate points and it worked.

Blizzard [7]3 years ago

4 0

Answer:

$y=2x+4$

Step-by-step explanation:

To find the best equation that passes through points (2,8) and (4,12), we have to first find the slope of such line, and then using the point-slope formula, we will find the expression.

So, for the slope, we use both points.

$m=\frac{y_{2}-y_{1} }{x_{2}-x_{1}}\\m=\frac{12-8}{4-2}=\frac{4}{2}=2$

Now, we use the slope-point form

$y-y_{1}=m(x-x_{1})\\y-8=2(x-2)\\y=2x-4+8\\y=2x+4$

Therefore, the right answer is the third choice

$y=2x+4$

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katovenus [111]

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Slope = 1/√3/3 = 1/√3 = √3/3

OR SLOPE = tan(a°) = √3/3 and a° = 30°

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3 years ago

A box is created from a sheet of cardboard 20 in. on a side by cutting a square from each corner and folding up the sides. Let x

Digiron [165]

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3 years ago

Need help with simplifying expressions

Ilia_Sergeevich [38]

Answer:

A) -20

Step-by-step explanation:

distribute the 4y and the -4 to the parentheses

16y^2 -16y+16y-20-16y^2

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2 years ago

Read 2 more answers

Is it a function and what is the Domain and the Range

Schach [20]

Answer:

a-is a function

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the range is :[-4,0]

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2 years ago

Read 2 more answers

Identify the type I error and the type II error that corresponds to the given hypothesis. The proportion of people who write wit

SCORPION-xisa [38]

Answer:

Type I error is to Reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is actually 0.29.

Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.

Step-by-step explanation:

We are given the following hypothesis below;

Let p = <u><em>proportion of people who write with their left hand</em></u>

So, Null Hypothesis, $H_0$ : p = 0.22 {means that the proportion of people who write with their left hand is equal to 0.22}

Alternate Hypothesis, $H_A$ : p $\neq$ 0.22 {means that the proportion of people who write with their left hand is different from 0.22}

Now, Type I error states that we conclude that the null hypothesis is rejected when in fact the null hypothesis was actually true. Or in other words, it is the probability of rejecting a true hypothesis.

So, in our question; Type I error is to Reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is actually 0.29.

Type II error states that we conclude that the null hypothesis is accepted when in fact the null hypothesis was actually false. Or in other words, it is the probability of accepting a false hypothesis.

So, in our question; Type II error is Fail to reject the claim that the proportion of people who write with their left hand is 0.29 when the proportion is different from 0.29.

4 0

2 years ago