What is the y-intercept of the quadratic function
f(x) = (x+1) (x+7) if x = 0

7

Step-by-step explanation:

f(x)=(x+1)(x+7)

If x=0

f(0)=(0+1)(0+7)

=1*7

=7

the range is 19

step-by-step explanation:

the range is biggest number minus the smallest, so in this case it would be

41 - 22 = 19

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