Yes or no? Thanks!!!
2 answers:
It is not a function if one of the xs has 2 ys associated with it. The graph below shows the definition rather clearly. The red parabola opens right. There is a blue vertical line that shows the 2 y values that the red graph has.
the green line is a function. Each x has only 1 y associated with it.
Answer
The red line is not a function.
The blue line shows why not (x = 5 has 2 y values).
The green line is a function.
Your question is a function.
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Answer:
Height of tree= 13.8m
Step-by-step explanation:
When finding the value of a in your working, I suggest to leave the answer to 5 significant figures so that your final answer is more accurate. The value of a should be 26.048m to 5 s.f.
Then multiplying 26.048 with sin 32° would give you 13.8m too when rounded off to 3 significant figures :)
I have attached my working too.
