Sylvia and Patrick plotted the information they gathered on the welght of cars and the mileage they get. Then they each drew a line on the graph that they felt best fit the data.
Sylvia's line is a line of best fit because her line starts and stops at exact data points
best fit as his line is close to most of the data points
X. Patrick's line
Xa line of

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).