Make a scatter plot of the data below.
Speed Stopping
(mph) distance (ft)
10 12.5
20
36.0
169.5
114.0
169.5
160 249.0
70325.5
Use the quadratic regression feature of a graphing calculator to find a quadratic model. Round to the nearest hundredths plac
a. y -0.06x2 +0.31x + 4
b. y --403x2 + 0.32x + 8.19
C. y = 0. 063 - 0312-4
d. y = 4.03x2 - 0.32x-8.19
Submitted
Answer is A

Idon't take stuff like this new to me

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.