Choose the function whose graph is given by: +
2x1
251
O A. y=-4cos(1)
o B. y= Acos(2x)
O c. y=4cos(1)
O D. y = 4cos(2x)

What is the difference between the predicted value and the actual value

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

Find the vertex for the parabola given by the function ƒ(x) = −3x2 − 6x.