Question

A coal car on a train weighs 30 tons plus 1 ton per cubic yard of coal x that it carries. The total weight of a coal car is: f(x) = x + 30. How will the graph of this function change if the coal car weight is changed to 26 tons?

The line will shift vertically up by 4 tons.

The line will shift vertically up 26 tons.

The line will shift vertically down by 4 tons.

The line will shift vertically down by 26 tons.

Answer 1

@Michele_Laino , @Hero , @ElonaSushchik, @iGreen , @dan815

Answer 2

which one do u think it is

Answer 3

I think it is the last one.

Answer 4

its wrong ! the correct answer is b

Answer 5

now can i have a medal

Answer 6

B was wrong, but I'll give you a medal anyway.

Answer 7

how ?