A sinusoidal function whose period is 1/2 , maximum value is 10, and minimum value is −4 has a y-intercept of 3.

What is the equation of the function described?

f(x)=7sin(4πx)+3

f(x)=7cos(4x)+3

f(x)=7sin(4x)+3

f(x)=7cos(4πx)+3