Question

A regular fruit smoothie x costs $1.50, and a large fruit smoothie y costs $3. Graph the function 1.5x + 3y = 12 to determine how many of each type of fruit smoothie Lisa can bur with $12. (You don't need to make a graph, but can you make its function table please?)

Answer 1

1.5x + 3y = 12
3y = -1.5x + 12
y = -2x + 4

Answer 2

(-3, 10), (-2, 8), (-1, 6), (0, 4), (1, 2), (2, 0), (3, -2)

Answer 3

How did you get "3y = -1.5x + 12"?

Answer 4

You start solving for "y". You subtract 1.5x to the other side, making it negative.

Answer 5

ok, and how did you get "y = -2x + 4"?

Answer 6

You divide by 3.

Answer 7

isnt -1.5 divided by 3 equal -0.5?

Answer 8

Oh yeah. Shoot. It should be y = -0.5x + 4.
Ignore the graph and what's above.
(-3, 5.5), (-2, 5), (-1, 4.5), (0, 4), (1, 3.5), (2, 3), (3, 2.5)

Answer 9

ok thanks :)

Answer 10

Thanks for correcting my mistake. Late at night.