Q.

The graph of y=x28x+15

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a

lies entirely below the X – axis

b

intersects the X-axis at two distinct points

c

lies entirely above the X – axis

d

touches the X-axis

answer is A.

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Detailed Solution

y=x28x+15

a>0,   Δ>0

So, the graph intersects x-axis at two distinct points

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