Which expression is less than –(–|–4.2|)
1 answer:
-(-|-4.2|) = -(-4.2) = +4.2
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Answer:
D
Step-by-step explanation:
Y-5=3(x+1)
y-5=3x+3
add 5 to both sides
the answer would be y=3x+8
Answer:
![f(-1) =\boxed{-11}\\ f(0) =\boxed{-4}\\f(2) =\boxed{14}](https://tex.z-dn.net/?f=%20f%28-1%29%20%3D%5Cboxed%7B-11%7D%5C%5C%20f%280%29%20%3D%5Cboxed%7B-4%7D%5C%5Cf%282%29%20%3D%5Cboxed%7B14%7D)
Step-by-step explanation:
![f(x)=\begin{cases} 9x -2 \:\: x < 0\\ 9x-4 \:\: x \geq 0\end{cases}\\\\\because \; -1 \: is \: less\: than \: zero\\\therefore f(-1) \: lies \: in \: the \: interval\: x](https://tex.z-dn.net/?f=f%28x%29%3D%5Cbegin%7Bcases%7D%209x%20-2%20%5C%3A%5C%3A%20x%20%3C%200%5C%5C%209x-4%20%5C%3A%5C%3A%20x%20%5Cgeq%200%5Cend%7Bcases%7D%5C%5C%5C%5C%5Cbecause%20%5C%3B%20-1%20%5C%3A%20is%20%5C%3A%20less%5C%3A%20than%20%5C%3A%20zero%5C%5C%5Ctherefore%20f%28-1%29%20%5C%3A%20lies%20%5C%3A%20in%20%5C%3A%20the%20%5C%3A%20interval%5C%3A%20x%3C0%5C%5C%5C%5Cf%28-1%29%20%3D%209%28-1%29%20-2%20%3D%20-9-2%20%3D%20-11%5C%5Cf%28-1%29%3D%5Cboxed%7B-11%7D%5C%5C%5C%5CSimilarly%2C%5C%3A%20%20f%280%29%20%5C%3A%5C%26%5C%3A%20f%282%29%5C%3A%20lies%20%5C%3A%20in%20%5C%3A%20the%20%5C%3A%20interval%5C%3A%20x%5Cgeq%200%5C%5C%5C%5Cf%280%29%20%3D%209x-4%20%3D%209%280%29%20-%204%20%3D%200-4%20%3D%20-4%5C%5Cf%280%29%20%3D%20%5Cboxed%7B-4%7D%5C%5C%5C%5Cf%282%29%3D9x-4%20%3D%209%282%29-4%20%3D%2018-4%20%3D%2014%5C%5C%5C%5Cf%282%29%3D%5Cboxed%7B14%7D)
I think it’s A :) hope it helps sjishsushsjshyshshshs