Select the function that represents a parabola with vertex at (2,1) and y-intercept (0,3). Question 9 options: A) ƒ(x) = 1∕2(x + 2)2 + 1 B) ƒ(x) = 2(x – 2)2 + 1 C) ƒ(x) = 1∕2(x – 2)2 + 1 D) ƒ(x) = 2(x + 2)2 + 1

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629