bellc42069
20.08.2021 •
Mathematics
What is the equation of the graph below?
S
2.
1
-
3
Oy = -(x - 3)2 + 1
Oy = -(x + 1)2 + 4
Oy = (x + 1)2 - 4
Oy = (x - 4)2 + 1
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Ответ:
a) At 10 minutes the line is at y - 1, which means she reached 1 km in 10 minutes.
b) The last 30 minutes would be 30 minutes to 60 minutes.
at 30 minutes she was at 0km at 60 minutes she was at 4 km, so in 30 minutes she traveled 4 km. 30 minutes is a half hour, so multiply distance by 2: 4 x 2 = 8, she was traveling at 8 km per hour.