Write the equation of the line that’s tangent to the given function at x=1 f(x)= two x to the third power minus four x

take the derivitive to find the slope

so at x=1, the slope is f'(1)=6(1)^2-4=6-4=2

y=mx+b

y=2x+b

find b

at x=1, f(1)=2(1)^3-4(1)=2-4=-2=y

-2=2(1)+b

-2=2+b

-4=b

equation is y=2x-4

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