Question

Two quadratic functions are shown.

Function 1:
f(x) = 3x2 + 6x + 7

Answer 1

Which function has the least minimum value and what are its coordinates?
Function 1 has the least minimum value and its coordinates are (−1, 4).
Function 1 has the least minimum value and its coordinates are (0, 7).
Function 2 has the least minimum value and its coordinates are (−1, 7).
Function 2 has the least minimum value and its coordinates are (0, 3).

Answer 2

@pooja195 do you have any clue on how to do this like explaining it to me ?

Answer 3

Function 1

quadratics like f(x) = 3x2 + 6x + 7

you can find the axis of symmetry from this equation
-b/2a from coefficients ax^2 + bx+c

so
we see b is 6 and a is 3

-6/2(3) = -1 that is your x -so plug this back in you equation and it will give you y or f(x)

Answer 4

Function 2

http://www.algebra.com/algebra/homework/quadratic/Quadratic_Equations.faq.question.208402.html

Answer 5

or use a calculator for quadratic regression:

https://www.youtube.com/watch?v=74bdyEF6Ugw

Answer 6

or look on the graph