Two functions are defined as shown. f(x) =-1/2 x – 2 g(x) = –1 which graph shows the input value for which f(x) = g(x)

if you graphed these two, the intersection of the two graphs would be where f(x) = g(x).

when you graph these two lines, you can find that point at (-2, -1)

f(x) = g(x)

-1/2 x – 2 = - 1

-1/2 x = 1

      x = - 2

answer

when x = - 2, f(x) = g(x)

(-2 , -1)

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

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.