2. Plus généralement, on considère la proposition mathématique suivante : « Soit a un nombre entier
naturel. La somme de deux multiples de a est un
multiple de a.»
Démontrer cette proposition.​

a

step-by-step explanation:

step-by-step explanation:

the true ones are a b and d

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

your answer is -9

step-by-step explanation: