A sine function has the following key features: Period = π Amplitude = 2 Midline: y=−2 y-intercept: (0,-2) The function is a reflection of its parent function over the x-axis. Use the sine tool to graph the function. The first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point.

Use the points as shown in the attachment to obtain the graph shown.

Step-by-step explanation:

Based on the description, the sine function is of the form.

We use the formula for the period to find the b value.

This implies that:

The a-value is the amplitude, which is 2

The negative sign shows a reflection over the x-axis.

Since the mid line is y=-2, the value of c is -2 because the parent function moved down from 2 units.

This means the mid-line moved from 0 to -2

Therefore the equation is

26?

step-by-step explanation:

47.28 or 47.2857143

step-by-step explanation:

you just divide 331 by 7 and you get that answer. ( i think so tho)