A. (7 0) / (7 0)
ExplanationStep 1: Compare with y² = 4ax. Step 2: 4a=28 so a=7 and focus is (7 0). Step 3: y² = 4ax opens to the right side.
Step 1: y² = 4ax से compare करें। Step 2: 4a=28 इसलिए a=7 और focus (7 0) है। Step 3: y² = 4ax right side खुलने वाला parabola है।
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