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anonymous
 one year ago
Two quadratic functions are shown.
Function 1:
f(x) = 2x2 − 8x + 1 Function 2:
x g(x)
−2 2
−1 −3
0 2
1 17
Which function has the least minimum value and what are its coordinates?
Function 1 has the least minimum value and its coordinates are (0, 1).
Function 1 has the least minimum value and its coordinates are (2, −7).
Function 2 has the least minimum value and its coordinates are (0, 2).
Function 2 has the least minimum value and its coordinates are (−1, −3).
anonymous
 one year ago
Two quadratic functions are shown. Function 1: f(x) = 2x2 − 8x + 1 Function 2: x g(x) −2 2 −1 −3 0 2 1 17 Which function has the least minimum value and what are its coordinates? Function 1 has the least minimum value and its coordinates are (0, 1). Function 1 has the least minimum value and its coordinates are (2, −7). Function 2 has the least minimum value and its coordinates are (0, 2). Function 2 has the least minimum value and its coordinates are (−1, −3).

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campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0ok.... in the 2nd function, g(x) what is the lowest value in the g(x) column... and what x value is associated with it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok is it 2,2 @campbell_st

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0no... look down the g(x) column 1st... what is the lowest value...?

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0great and the x value associated with is it 1 so g(x) has a minimum at (1, 3)

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0so is this algebra or calculus..?

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0well you have to look at f(x) as well

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0ok for f(x) you need to find the line of symmetry, the minimum value lies on the line of symmetry so use \[x = \frac{b}{2 \times a}\] your f(x) has b = 8 and a = 2 can you substitute them and calculate a value for x

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0not quite its x = 2 \[x = \frac{(8)}{2 \times 2} = 2\] so substitute x = 2 into f(x) and calculate a value... this will be the minimum for f(x)

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0find \[f(2) = 2\times 2^2  8 \times 2 + 1\]

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0ok... so now which point is lower (2, 7) or (1, 3)...?dw:1437682422778:dw

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0there's your answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0u think u can help with a few more

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0no, i'm about to go to school... its friday morning in Australia
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