Question

What is the value of the dependent variable if the value of the independent variable is –2b?

f(x) = 3x – 5
A.
–b
B.
–11b
C.
–6b – 5
D.
6b – 5

Answer 1

plug in -2b to find out

Answer 2

Do you recognize which of these is the independent and the dependent variable?

Answer 3

y=3x-5
y depends on x
y is the dependent variable

Answer 4

No and I am still having trouble :(

Answer 5

all it means is that f(x) depends on x for its value

Answer 6

the function is
f(x) = 3x – 5

Answer 7

so would it be c?

Answer 8

and you are asked for when x=-2b

Answer 9

therefore
f(-2b)=3(-2b)-5

Answer 10

which gives -6b-5

Answer 11

its all about substitution

Answer 12

Thanks so much!

Answer 13

thanks to open study