Question

A student wrote the equation f(x)=-4sin pi/6 x+5 to model the data.What is the student's error?

Answer 1

we know that

The student wrote the equation

$f(x)=-4sin\frac{pi}{6}x+5$

For x=0, f(x)=1 -----> information given by the table

but

if you substitute x=0 in the equation

$\begin{gathered} f(x)=-4s\imaginaryI n\frac{p\imaginaryI}{6}(0)+5 \\ f(x)=5 \end{gathered}$

The equation is not correct to model the data

therefore

The answer is option B