Create an equation for a cubic function, in standard form, that has x-intercepts
given by the set{-3, 1, 7} and which passes through the point (-2, 54).

y = 2 (x + 3)(x - 1)(x - 7)

Explanation:

y = a (x + 3)(x - 1)(x - 7)

54 = a (-2 + 3)(-2 - 1)(-2 - 7)

54 = a (1)(-3)(-9)

54 = 27a

a = 54 / 27

a = 2

y = 2 (x + 3)(x - 1)(x - 7)

see the attached picture

hi,

the capital city of australia is canberra.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.