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3 years ago

What is the slope for (2, -1)(3,4)?

Mathematics

1 answer:

pshichka [43]3 years ago

7 0

To find the slope, using the coordinates, you will plug them into the slope formula.

Slope formula: $\frac{y_2-y_1}{x_2-x_1}$

You plug in the 2nd Y-cordinate in y2 and the 1st y-coordinate in y one. Then you do the same thing for the-x coordinates. Plug in the 2nd x-cordinate in x2, and 1st x-cordinate in x1.

You plug in 4 and -1 in the y2 and y1, respectively. Also, you plug in 3 and 2 in x2 and x1 respectively

The equation you're going to get after plugging in is:

$\frac{4-(-1)}{3-2}$

4-(-1) is the same as 4+1, so you add them. The subtract 3-2. Then you will end up with the fraction, further solving it will get you your answer.

$\frac{4+1}{3-2}=\frac{5}{1}=5$

The answer you will get is 5 after completing all of the steps with the slope formula.

The slope of the line is 5

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3 years ago

By which conversion factor can 800 meters be multiplied to change it to mile

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The conversion factor is always a fraction that's equal to ' 1 '.

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3 years ago

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Are the following (correct , incorrect , linear , nonlinear ) 7n, n+(n+1)+(n+2) , 3n”2 squared “ , 2n+8, n(3 squared) div 2

Maslowich

<h3>Answers:</h3>

A) Correct. Linear.
B) Correct. Linear.
C) Incorrect. Nonlinear.
D) Incorrect. Linear.
E) Correct. Nonlinear.

=======================================================

Explanation:

The product of a number n and 7 is the same as n*7 or 7*n or 7n

The number next to the variable implies multiplication, so we don't have to write the asterisk or multiplication symbol.

This expression is linear because the exponent is 1. Think of 7n as 7n^1

Or you could graph it out and you would get a straight line.

-------------------

n = first number

n+1 = number right after number n

n+2 = number right after n+1

This shows we have 3 consecutive numbers

The sum of this leads to 3n+3 which is linear.

-------------------

Tina needs to square 3n to get (3n)^2. So she forgot to square the 3

(3n)^2 is equivalent to 9n^2

Both of which are nonlinear. They graph out a curved parabola which isn't a straight line. The exponent being larger than 1 is another indication of a nonlinear expression.

-------------------

The sum of a number and 8 can be represented by n+8 where n is the unknown number. Then sticking "twice" out front means we double all of n+8. So we double it to get 2(n+8) which is equivalent to 2n+16

Tina mistakenly only doubled the n and not the 8

2(n+8) and 2n+16 are both linear. It might help to think of it like y = 2x+16 and to graph that out to get a straight line.

-------------------

E) Tina is correct here in dividing n^3 over 2

This is nonlinear since the exponent is larger than 1. It graphs out a curved cubic, rather than a straight line.

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2 years ago

determine any data values that are missing from the table assuming that the data represent a linear function

Pavel [41]

Answer:

The answer is B

Step-by-step explanation:

This is because if you take a look at the function table you are imputing 1 each time. So if you start with 1 in X and add 1 more to it you get 2 in y.

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4 years ago

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Bingel [31]

Answer: Number 1 answer is 9i, -9i. Number 2 is 2i, - 2i. Number 3 is $\sqrt{x}$ 14i, - V-check 14i. And number 4 is V-check 13 - V-check 13

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2 years ago

Read 2 more answers