Ill give brainliest answer in 5 minwhich of the sets of ordered pairs represents a function? a = {(−5, 5), (−2, 2), (2, −2), (5, −5)}b = {(4, 2), (3, −2), (9, 4), (11, −3)}select one: a. only ab. only bc. both a and bd. neither a nor b

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Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.