exam Maths Puzzle Numerical Ability

Evaluate the discriminant b^2-4ac. Then use the answer to state how many real-number solutions exist for the equation.
〖y=x〗^2+8x+16

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exam Other Question

x^2-6X > 0 I have 2 questions.

1. I need the value of x for this problem:
y=-[SQRT(4 - 3x)] + 6


2. The graph of y=6 - [SQRT(4 - 3x)] contains which point?