Answer: D.
The y-intercept of the line means that the weight of the empty jar is about 160 grams.
Step-by-step explanation:
We know that the equation of line is given by , where m is the slope of the line and c is the initial amount .
For the given linear equation
where x is the number of marbles added, and y (dependent variable ) is the weight of the jar.
Slope of line m= 4.95 which is approximately 5 , thus, for every increase in marble, weight of jar increased by approx 5 gram.
To find the y intercept , put x=0, we get
y=160.03 which means if there is no marble then the weight of the jar = 160.03 grams or approximately 160 grams.
Thus, The y-intercept of the line means that the weight of the empty jar is about 160 grams.