Mathematics, 03.07.2019 20:30 asmita9876

Find the equation of a line that goes through points (3,10) and (1,4)

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To find the equation of the line, we have to find the slope of the line first. A slope of the line has two points of "x" as "x_1" and "x_2" and the second point of "y" as "y_1" and "y_2".

The two points in the graph are given as, (3, 10) and (1, 4).

The first line with the first points of variable "x_1" and "y_1" for the first line lying on those "x" and "y" planes is in this format; (x_1, y_1) = (3, 10). So, x_1 = 3 and y_1 = 2.

Similarly, for the second line with points of variable "x_2" and "y_2" for the second lying in those "x" and "y" planes in this format; (x_2, y_2) = (1, 4). So, x_2 = 1 and y_2 = 4.

Calculate the slope of the two given lines by the slope formula for slope between the two points in a graphical representation. That is:

$\boxed{\mathbf{Slope = \dfrac{y_2 - y_1}{x_2 - x_1}}}$

$\mathbf{Slope \: (m) = \dfrac{4 - 10}{1 - 3}}$

$\mathbf{m = \dfrac{- 6}{- 2}}$

$\boxed{\mathbf{Slope, \: m = 3}}$

Find the equation of the two lines in a standard form of "y = mx + b". And put the value of slope, that is, "m" into the standard equation.

$\mathbf{y = 3 \times x + b}$

Put the value of points in the first or second line such as, "x_1, y_1" or "x_2, y_2". Both of the points of the given lines in a graph can provide the final values. Here, we are going to consider the first line of the following points as "x = 3" and "y = 10". Note that, you can even take the second line for a computation to find the value of "b" as well as complete the line equation. So:

$\mathbf{10 = 3 \times 3 + b}$

$\mathbf{3 \times 3 + b = 10}$

$\mathbf{9 + b = 10}$

$\mathbf{9 + b - 9 = 10 - 9}$

$\boxed{\mathbf{b = 1}}$

We have all the values for completing the line equation. By this, we can re-substitute the original values of "x" and "y" to confirm it is a correct line equation for two given lines.

Therefore, our line equation for a slope of "m = 3" and a variable point of "b = 1" is going to be:

$\boxed{\mathbf{\underline{y = 3x + 1}}}$

Hope it helps.

Answer from: Quest

d) 48

step-by-step explanation:

16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256,272,288,304,320,336

Answer from: Quest

it will be a cylinder. with a diameter of 8 and 4 single pieces high

step-by-step explanation:

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