Which shows a rational number plotted correctly on a number line?

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

yes. we do proportions in probabilities.

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1