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1 answer:
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Answer:
- f(x) vertex is a minimum
- g(x) vertex is a maximum
Step-by-step explanation:
The reasoning is the same in each case: the sign of the coefficient of the squared term indicates the direction the parabola opens. If it opens upward, the vertex is a minimum; if it opens downward, the vertex is a maximum.
f(x) -- the sign of the squared term is positive, so the vertex is a <em>minimum</em>.
g(x) -- the sign of the squared term is negative, so the vertex is a <em>maximum</em>.
Answer:
Reason : by ASA , x = 36
Step-by-step explanation:
∠ABC = ∠EBD (vertically opposite angle)
BC = BD = 54 (same length)
∠BAC = ∠BDE (alternate interior angles)
By ASA , ΔABC ≅ ΔDBE