Answer: f(x)=1-1.9x=x-2
Step-by-step explanation:
Big brain time.
Answer: D) reflection across y = -x
Explanation:
When we reflect over y = x, we basically swap x and y. So for instance, the point (3,1) becomes (1,3).
When reflecting over y = -x, we will do the same thing but we'll make each coordinate swap in sign from positive to negative (or vice versa). The rule for reflecting over y = -x is ![(x,y) \to (-y,-x)](https://tex.z-dn.net/?f=%28x%2Cy%29%20%5Cto%20%28-y%2C-x%29)
So if we apply that rule to point A(3,1) then it becomes A ' (-1, -3).
Similarly, B(1,5) moves to B ' (-5, -1)
Finally, C(6,9) becomes C ' (-9, -6)
Y=1
x=50 y=5 50 is 10 times more than 5, the proportion is x is 10 times more, so you always divided 10 from x
I'm pretty sure the answer is C