Find the equation of a quadratic function with zeros at x = 2 and x = 4 and y-intercept (0,8). Give your answer in standard form. Question 10 options:

f(x) = –(x – 2)(x – 4)

f(x) = –x2 + 6x – 8

f(x) = x2 – 6x + 8

f(x) = (x – 2)(x – 4)

1.   an exact solution requires a radical solution - no decimal approximation.2. (a)4x^3 = 756x^3 = 756/4 = 189x =   cube root of 189 =   5.74   to nearest hundredth answer(b)   189 = 3*3*3*7   so we can write the cube root of 189 as 3∛7 answerchecking (a) 4*(5.74^3 =   756.48   which is very close(b)   4* ((3∛3)^3   = 4*189   = 756   - spot on! 3. i would use solution b because the original question asked for an exact solution.

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