Dashavu7165
12.12.2020 •
Mathematics
Some students were investigating the speed of a toy car they built. They
performed two trials and recorded their data in the table below.
trial 1= distance in m=8.1
trial 1= time in sec= 4
trial2= distance in m=7.5
trial 2=time in sec=6
What was the average speed of the toy car during the two trials to the nearest
tenth of a m/s? Be sure to use the correct place value.
A golf ball is hit a distance of 300 yards in 10 sec. What is the speed of the golf ball?
Mr. Smith is traveling from Houston, TX to Dallas, TX. It takes 4 hours to make the 224
mile trip. What is his velocity?
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Ответ:
-3= m
WORD EXPLANATION-
first you would identify two points on the graph. mine were (-6,3) & (0,1). then you would find how many units you have to move on the x axis to get from (0,1) to (-6,3). the answer is -6 units. then you would do the same again but on the y axis. the answer is 2 units. then you would make a fraction & simplify it (x/y) -6/2 is -3.
NUMERIC EXPLANATION-
x1-x2/y1-y2=m
-6-0/3-1=m
-6/2=m
-3=m