The number of vinyl album sales (in millions) in a country x years after 2010 can be modeled by y=0.12x2+0.3x+3.3 for 2010 through 2016. Use this model to predict the number of vinyl album sales in the country in the year 2020 where (x=10).
20.5 million
(x=10)
so, y=0.12x^2 or 0.12 x 10=1.2 squared or 1.2 x 1.2=1.44
0.3 x 10= 3
plus 3.3 or
1.44+3+3.3=7.74
To predict the number of vinyl album sales in the year 2020 using the given model, we need to substitute the value of x=10 into the equation y=0.12x^2+0.3x+3.3.
Step 1: Substitute the value of x=10 into the equation.
y = 0.12(10)^2 + 0.3(10) + 3.3
Step 2: Simplify the equation.
y = 0.12(100) + 0.3(10) + 3.3
y = 12 + 3 + 3.3
Step 3: Calculate the result.
y = 18.3
Therefore, according to the model, the predicted number of vinyl album sales in the year 2020 is 18.3 million.
so plug in x=10 and evaluate y.
what do you get?