Cost of a chair b) The cost of 3 tables is same as the cost of 4 chairs. If the cost of one table is Rs 1200, fiu
cost of a chair.

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

b, i believe, but not sure.