Answer:
For the first question it is C(3rd one) and for the second question it is D(last one)
Step-by-step explanation:
So lets think about what we know here.
We know that Lena was walking at a normal speed.
Then she stopped.
Then she moved slowly.
Since x is time, and y is distance from school, we know that x is going to costantly change, while y will depend on what is happening.
First off, we know she is goiong to school. now away from it. This means that any graph with a increasse in the y value will be incorrect. This gets rid of a and b, whihc are the first two answers.
So y should go up nomrallu, since she was just walking at first.
Now, we know that the distance from school must stop, and then begin to decrease at a slower pace. When lookking at the graphs, only C continues to decrease, while D is constantly not moving.
So the answer is C.
Next.
we know that kala drives at a constant speed.
We know she starts going faster.
Then she slows down.
So we can isntantly remove any graph that completly stops in speed, which means y would be 0, since she is always moving. This gets rid of A and B.
Then we have C and D
Well, remember that after Kala is going at a normal speed, she sped up.
Only one graph has a large spike in speed after a constant speed. THis is D.
So the answer must be D
Hope this helps!
