A graph of number of marbles (y-axis)versus the weight of the marbles (x-axis,grams)is shown to be linear with a trendline of y = 8.1x.What is the weight of the marbles when the number of marbles is 32?
A) 258
B) 0
C) 8
D) 129
E) 4

Question

Quizplus · Accepted Answer

To find the weight of the marbles when the number of marbles is 32, set y = 32 in the equation y = 8.1x and solve for x: 32 = 8.1x, so x = 32 / 8.1 = 4.

A Graph of Number of Marbles (Y-Axis)versus the Weight of the Marbles