Opposite:
Just change the sign.
If it's a positive number, make it negative.
If it's a negative number, make it positive.
Absolute value:
Even easier.
Just throw away the sign, and you have it.
I use my calculator
Y1 (the blue one) = x^2-2x
Graph
2nd trace minimum
X= 1 and y = -1
So the vertex is (1,-1)
Im sorry i can’t help you but you can use photomath and also Aaa HANGE
Answer:
i was able to get y = 1.3x - 2
8/10 because equal fractions have to be multiplied by 2