Find the real zeros of the function. List the x-intercepts of the graph of the function.F(x) = x4 - 50x2 + 49
A. x = -1, x = 1, x = -7, x = 7
B. x = -7, x = 7
C. x = -50, x = 50
D. x = -49, x = 49
Answer: A
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Determine the row operation that was used on the first matrix to obtain the second matrix.
, 
What will be an ideal response?
Solve using matrices.A chemist has prepared two acid solutions, one which is 4% acid by volume and the other which is 11% acid. How many cubic centimeters of each should the chemist mix together to obtain 50 cm3 of 
-acid solution?
A. 4%-solution: 3.4 cm3; 11%-solution: 46.6 cm3 B. 4%-solution: 20 cm3; 11%-solution: 20 cm3 C. 4%-solution: 30 cm3; 11%-solution: 20 cm3 D. 4%-solution: 20 cm3; 11%-solution: 30 cm3
Graph the parabola and give its vertex, axis, x-intercepts, and y-intercepts.f(x) = -x2 + 2x + 8
A. vertex (1, -9); axis is x = 1;
x-intercepts are 4 and - 2; y-intercept is -8
B. vertex (-1, 9); axis is x = -1;
x-intercepts are -4 and 2; y-intercept is 8
C. vertex (1, 9); axis is x = 1;
x-intercepts are 4 and - 2; y-intercept is 8
D. vertex (-1, -9); axis is x = -1;
x-intercepts are -4 and 2; y-intercept is -8
Find the slope and y intercept of the graph of the equation.y = -4x + 6
A. Slope = 6, y intercept = -4 B. Slope = 4, y intercept = -6 C. Slope = -4, y intercept = 6 D. Slope = -6, y intercept = -4