Answer:
2 Function B
Step-by-step explanation:
The slope can sometimes be called the gradient, and the equation for the gradient is (y2 - y1)/(x2 - x1). So therefore, you'd do: (-8 - 7)/(4 - -5) which is (-15)/9) which is -1 2/3 or -1.6 (recurring), which is your answer. I hope this helps! Let me know if I've confused you :)
Answer: The percent error is -2.1352% of Jocelyn's estimate.
Remember that moving on the x axis is 1 and on the y axis 2