What is 73 square inches. What is the paper's area in square centimeters?
1 answer:
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The graph of 
is shown in the graph below.
The graph is of ∩-shape when the constant
of the quadratic equation 
is negative
The graph is of ∩-shape when the constant
The quadratic is continuous over its entire domain, which is to say we can evaluate the limit by direct substitution:
You are mistaking (-3)² for -3². They are not the same number.
(-3)² = (-1 × 3)² = (-1)² × 3² = 1 × 9 = 9
-3² = -1 × 3² = -1 × 9 = -9