What is the vertex of the graph of y = 3x2 + 2x + 1?

Its B on edge

Step-by-step explanation:

Answer-

The vertex will be at

Solution-

The parabolic equation given is,

Here,

a = 3, b = 2, c = 1

The equation of the axis of symmetry is,

Putting the values,

As we know, the axis of symmetry and the parabola meet only at one point and that is the vertex.

So, the vertex will be at

Hence,

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if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads