B. calculate the slope of the curve between points a and b. instructions: enter the slope as a simplified fraction. if the slope is negative, enter the negative sign in the numerator.

You haven't provided the points, so I cannot provide you with an exact number for the slope.

However, I will tell you how to solve this problem and you can apply on the points you have.

Assume you have two points (x1,y1) and (x2,y2)
The formula used to calculate the slope is as follows:
slope of line = (y2-y1) / (x2-x1)

Examples:
1- Assume that the two points are (2,3) and (5,7)
The slope of the line will be as follows:
slope = (7-3) / (5-2) = 4/3

2- Assume that the two points are (5,2) and (7,0)
The slope of the line will be as follows:
slope = (0-2) / (7-5) = -1

Hope this helps :)