f(x)6x-4 (a)f(-1) (b)f(2)

Question

The answer should be (a)-10 and (b)8 Need to know steps to work it 

Answer 1

to evaluate a function for a given value of x, you just replace x with the value given

 

for (a) 6x - 4 = 6(-1) - 4 = -6 - 4 = -10

 

now you can do part (b)