Question

Write the cubic function.

Answer 1

Explanation:

hello :

let f this function

the roots of this function are : -1 , 0 ,6 so ; f(x) = ax(x+1)(x-6)

now calculate : a ....but this graph passes by : (1, -10) means f(1) = -10

put : x=1 and f(x) = -10

-10 = a(1)(1+1)(1-6)

-10a = -10 so : a= 1

conclusion :

f(x) = x(x+1)(x-6)