Question

the table shows the total number of points accumulated by 5 students in a science class and the numerical grade in the course. complete parts a through i.
total points numerical grade
439 86.4
395 78.1
493 96
334 63
211 42.7
c. using the total points as inputs and the numerical grade as outputs, write the ordered pairs for each student. call this function f, and write it as a set of ordered pairs.
f = { (439,86.4),(395,78.1),(493,96),(334,63),(211,42.7) }
(type ordered pairs, using integers or decimals. use a comma to separate answers as needed.)
d. plot the ordered pairs you determined in part c on an appropriately scaled and labeled set of axes. let n represent the total points. choose the correct graph below.
a.
b.
c.
d.

Explanation:

Step1: Analyze the ordered - pairs

The ordered pairs are of the form (total points, numerical grade). The x - axis should be labeled as "Total Points" and the y - axis as "Numerical Grade".

Step2: Check the points in each graph

For the ordered pairs (439, 86.4), (395, 78.1), (493, 96), (334, 63), (211, 42.7), we look for a graph where these points are plotted correctly.
In option B, when we match the x - values (total points) and y - values (numerical grades) of the ordered pairs with the points on the graph, they align correctly.

Answer:

B.