Present age of father is 42 years and that of his son is 14 year. Find the ratio of present age of father to the present age of son.

(a)

42:28 (b) 84:14 (c) 3:1 (d) 45:17​

c. 3:1

42÷7=3

14÷7=1

=3:1

answer: a

step-by-step explanation:

10.2 units

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