The minimum of the graph of a quadratic function is located at (–1, 2). the point (2, 20) is also on the parabola. which function represents the situation?

a) f(x) = (x + 1)2 + 2
b) f(x) = (x – 1)2 + 2
c) f(x) = 2(x + 1)2 + 2
d) f(x) = 2(x – 1)2 + 2

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This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.

In a right triangle δabc, the length of leg ac = 5 ft and the hypotenuse ab = 13 ft. find: b the length of the angle bisector of angle ∠a.