Answer:
Step-by-step explanation:
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When no unit is given for an angle, what unit must be used?
2 answers:
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Answer:
-3
Step-by-step explanation:
we khow that the vertex form of a function is written this way :
f(x)=a(x-h)²+k
- the coordinates of the vertex are (h,k) so from the graph we can deduce that k = -3
