The following data were collected.
x 35 39 42 45 56
y 21 18 28 30 32

Use technology to write an equation that models the data.

ŷ = −0.618x + 1.008
ŷ = 1.008x + 0.618
ŷ = 0.618x − 1.008
ŷ = −1.008x − 0.618