Question

Please help on this physics question

Answer 1

Answer:

you need to include the units for both axis to be able to answer this

Explanation:

average speed in uniform motion is the slope anywhere on the line but you could always pick 2 points and do it that way and speed is just rise over run

or y2-y1/x2-x1

Pick two points on the line and determine their coordinates.

Determine the difference in y-coordinates of these two points (rise).

Determine the difference in x-coordinates for these two points (run).

Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

the second bit i think they are looking for this calculation y = mx + b, where m is the slope and b is the y-intercept (where the line crosses the y axis (the vertical one that has no units

Then use that formula for the last question and put in the x value of 10 and complete the formula to find out what y is