The corn crop yield based on a new fertilizer is modeled by the equation ŷ = 0.01x + 1.24, where x represents the amount of fertilizer in pounds per acre and ŷ represents the predicted yield of crops in tons per acre. How much fertilizer should be used to yield 7 tons of corn per acre?

1.31 pounds per acre
5.76 pounds per acre
131 pounds per acre
576 pounds per acre

Question

The corn crop yield based on a new fertilizer is modeled by the equation ŷ = 0.01x + 1.24, where x represents the amount of fertilizer in pounds per acre and ŷ represents the predicted yield of crops in tons per acre. How much fertilizer should be used to yield 7 tons of corn per acre?

1.31 pounds per acre
 5.76 pounds per acre
 131 pounds per acre
 576 pounds per acre

Midnight97 · Answer

Alright, let's see here

Phantomdex · Answer

I have like less than 10 minutes left

Midnight97 · Answer

@phantomdex wrote:

I have like less than 10 minutes left

Ik I am trying to be fast

Midnight97 · Answer

y=0.01x+1.24
7=0.01x+1.24
7-1.24=0.01x
5.76=0.01x
x=5.76/0.01

Midnight97 · Answer

576 pounds per acre is your answer