ANSWER
The graph has no zero.
EXPLANATION
The given polynomial function is a quadratic graph that has its maximum point at

The graph has no x-intercept.
This implies that, the polynomial function represented by this graph has no zeros.
The correct answer is option D
Answer:
m∠ABD = m∠CBE ⇒ by subtracting a common angle from the given angles
Step-by-step explanation:
∵ m∠ABE = m∠CBD
∵ m∠ABD = m∠ABD + m∠DBE
∵ m∠CBD = m∠CBE + m∠EBD
∵ ∠EBD is common angle between them
∴ m∠ABD = m∠CBE
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