Slope = (2+4)/(1-4) = 6/-3 = -2
passing thru (1.2)
y = mx + b
b = y - mx
b = 2 - (-2)(1)
b = 2 + 2
b = 4
equation
y = -2x + 4
She has 10 liters left. Find 4/9 of 18 by multiplying 4/9 and 18. 4/9 of 18 is 8, so she served 8 of the 18, leaving 10 liters.
Answer: ![12\sqrt{5}](https://tex.z-dn.net/?f=12%5Csqrt%7B5%7D)
Step-by-step explanation:
![3\sqrt{88}](https://tex.z-dn.net/?f=3%5Csqrt%7B88%7D)
88 can be rewritten as 8 x 10 and 8 can be rewritten as
making a 2 come out of the root.
![3\sqrt{2^2*2*10}\\ 3*2\sqrt{2*10}\\6\sqrt{2*10}](https://tex.z-dn.net/?f=3%5Csqrt%7B2%5E2%2A2%2A10%7D%5C%5C%203%2A2%5Csqrt%7B2%2A10%7D%5C%5C6%5Csqrt%7B2%2A10%7D)
10 can be rewritten as 2 x 5.
![6\sqrt{2*2*5}](https://tex.z-dn.net/?f=6%5Csqrt%7B2%2A2%2A5%7D)
2*2 can also be rewritten as
making a 2 come out of the root.
![6\sqrt{2^2*5}\\ 6*2\sqrt{5}\\ 12\sqrt{5}](https://tex.z-dn.net/?f=6%5Csqrt%7B2%5E2%2A5%7D%5C%5C%206%2A2%5Csqrt%7B5%7D%5C%5C%2012%5Csqrt%7B5%7D)
We can't keep simplifying the root.