Answer:
12 inches
Step-by-step explanation:
For what there’s no photo
The point lies behind yz-plane
Answer:
![2x - 7y = -19\:or\:y = \frac{2}{7}x + 2\frac{5}{7}](https://tex.z-dn.net/?f=2x%20-%207y%20%3D%20-19%5C%3Aor%5C%3Ay%20%3D%20%5Cfrac%7B2%7D%7B7%7Dx%20%2B%202%5Cfrac%7B5%7D%7B7%7D)
Step-by-step explanation:
First, find the <em>rate of change</em> [<em>slope</em>]:
![\frac{-y_1 + y_2}{-x_1 + x_2} = m](https://tex.z-dn.net/?f=%5Cfrac%7B-y_1%20%2B%20y_2%7D%7B-x_1%20%2B%20x_2%7D%20%3D%20m)
![\frac{-3 + 5}{-1 + 8} = \frac{2}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B-3%20%2B%205%7D%7B-1%20%2B%208%7D%20%3D%20%5Cfrac%7B2%7D%7B7%7D)
Then plug these coordinates into the Slope-Intercept Formula instead of the <em>Point-Slope Formula</em> because you get it done much swiftly. It does not matter which ordered pair you choose:
5 = 2⁄7[8] + b
2 2⁄7
![2\frac{5}{7} = b \\ \\ y = \frac{2}{7}x + 2\frac{5}{7}](https://tex.z-dn.net/?f=2%5Cfrac%7B5%7D%7B7%7D%20%3D%20b%20%5C%5C%20%5C%5C%20y%20%3D%20%5Cfrac%7B2%7D%7B7%7Dx%20%2B%202%5Cfrac%7B5%7D%7B7%7D)
If you want it in <em>Standard Form</em>:
y = 2⁄7x + 2 5⁄7
- 2⁄7x - 2⁄7x
________________
−2⁄7x + y = 2 5⁄7 [We do not want fractions in our Standard Equation, so multiply by the denominator to get rid of it.]
−7[−2⁄7x + y = 2 5⁄7]
![2x - 7y = -19](https://tex.z-dn.net/?f=2x%20-%207y%20%3D%20-19)
__________________________________________________________
3 = 2⁄7 + b
![2\frac{5}{7} = b \\ \\ y = \frac{2}{7}x + 2\frac{5}{7}](https://tex.z-dn.net/?f=2%5Cfrac%7B5%7D%7B7%7D%20%3D%20b%20%5C%5C%20%5C%5C%20y%20%3D%20%5Cfrac%7B2%7D%7B7%7Dx%20%2B%202%5Cfrac%7B5%7D%7B7%7D)
y = 2⁄7x + 2 5⁄7
- 2⁄7x - 2⁄7x
_______________
−2⁄7x + y = 2 5⁄7 [We do not want fractions in our Standard Equation, so multiply by the denominator to get rid of it.]
−7[−2⁄7x + y = 2 5⁄7]
![2x - 7y = -19](https://tex.z-dn.net/?f=2x%20-%207y%20%3D%20-19)
** You see? I told you it did not matter which ordered pair you choose because you will always get the exact same result.
I am joyous to assist you anytime.
Step-by-step explanation:
1.23
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