Write a equation of a line through (4, 6) and (-10, 2)

Mathematics

1 answer:

Ludmilka [50]2 years ago

4 0

Answer:

y=2/7x+34/7

Step-by-step explanation:

the slope of this line is 2/7.

y=2/7x+?

? is the y-intercept.

Looking at the line that we have graphed, we can see that it intersects at 34/7 y.

the equation for the line that goes through 4,6 and -10, 2 is

y=2/7x + 34/7

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Allushta [10]

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2 years ago

How many different ways can the first 10 letters of the alphabet be arranged?

yuradex [85]

Answer:

3628800

Step-by-step explanation:

First letter can be chosen form all 10, next from 9, third from 8 and so on, until you have only one number left.

So the number of ways to arrange the letters can be calculated as

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3 years ago

I tried using the standard deviation formula but still got the wrong answer. How would I solve this?

nadezda [96]

Answers:

First box = 864

Second box = 3136

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Explanation:

The weird looking E symbol is the greek uppercase letter sigma which stands for "sum". You'll be adding everything in the x^2 column to find that 64+144+256+400 = 864, which is already done for you in the table (as the 864 is at the bottom of the second column, in the "total" row).

In short, you just copy the 864 into the first box.

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For the second box, you'll square the 56 to get 3136

This is because the table shows that adding up all the x values leads to 56

(8+12+16+20 = 56)

So that means $\sum x = 56$ and $\left(\sum x\right)^2 = (56)^2 = 3136$

7 0

2 years ago

Read 2 more answers

the equation 7x - 3y = 42 relates to x and y. find three pairs of points (x,y) that make the equation true.

Sloan [31]

If it doesn't matter whether the points are integers or not you can just pick a number for either y or x and solve for the other variable. For example, if you pick 3 to be your x, plug it in and then solve for y. Start out with: $7x-3y=42$ Plug in 3 for x: $7(3)-3y=42$ . Then, $21-3y=42$ . Subtract 21 from both sides and then divide by -3 on both sides. You end up with y=-7 so one of your points is (3, -7)