
River R.
asked 03/15/21determine whether the quadratic function shown below has a minimum or maximum, then determine the minimum or maximum value of the function
f(x)=x^2-6x+14
2 Answers By Expert Tutors
f(x) = x2 - 6x + 14
The graph of the function is a parabola opening upward (because the coefficient of x2 is positive). Therefore, the function has a minimum value.
The minimum or maximum of a quadratic function f(x) = Ax2 + Bx + C occurs when x = -B/(2A).
So, for the given function, x = -B/(2A) = 6/2 = 3 is the x-coordinate of the lowest point on the graph.
Minimum value = f(3) = 5
Hi River R
f(x) = x^2-6x+14
Is a standard form parabola ax2 + bx + c
Where a = 1, b = -6 and c = 14
f(x) = x2 -6x + 14
Since a = 1 it opens upward and has a minimum at its vertex
The x coordinate of the vertex -b/2a = -(-6)/2 = 3
The y coordinate of the vertex can be found by plugging in the x coordinate
f(3) = 32 - 6(3) + 14 = 9 - 18 + 14 = 9 - 4 = 5
So the vertex is at (3, 5)
The y intercept is (0, 14)
It does not touch the x axis and has no x intercepts you can use the Quadratic Formula to check this out and you can plot your function at Desmos.com
Still looking for help? Get the right answer, fast.
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
Robert S.
03/15/21