Determine the quadratic function whose graph is given.
A. f(x) = -x2 + 8x + 7
B. f(x) = -x2 + 8x - 7
C. f(x) = -x2 - 8x - 7
D. f(x) = x2 + 8x + 7
Answer: B
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Let U = {1, 2, 4, 5, a, b, c, d, e}. Find the complement of the set.S = ?
A. ? B. ?' C. U D. {0}
Graph the equation.2x - y = -6
A. 
B. 
C. 
D. 
Write the compound statement in symbolic form. Let letters assigned to the simple statements represent English sentences that are not negated. Use the dominance of connectives to show grouping symbols (parentheses) in symbolic statements.I change the station if and only if it's not true that both I like the song and the DJ is entertaining.
A. r ? ~(p ? q) B. r ? ~(p ? q) C. r ? (~p ? q) D. (r ? ~p) ? q
Graph the function on a grapher. Then use the grapher to find the x- and y-intercepts. Round to the nearest hundredth if necessary.f(x) = -17.5x2 - 6.68x + 2.89
A. (-0.26, 0), (0.64, 0), (0, -2.89) B. (-0.64, 0), (0.26, 0), (0, 2.89) C. No x-intercepts, (0, 2.89) D. (0.26, 0), (0, 2.89)