ASAP PLZZZ The axis of symmetry for the graph of the function f start bracket x end bracket equals one-quarter x square plus b x

Question

2 years ago

8

plus 10 is x=6. What is the value of b? −12 −3 3

2 answers:

Lilit [14] · Answer 1 · 2022-02-14T04:56:27+03:00

Lilit [14]2 years ago

7 0

Answer:

$b=-3$

Step-by-step explanation:

The given function is $f(x)=\frac{1}{4}x^2+bx+10$ .

When we compare to $ax^2+bx+=0$ , we have

$a=\frac{1}{4}$ and c=10

The equation of the axis of symmetry of a vertical parabola is:

$x=-\frac{b}{2a}$

Also from the question the axis of symmetry is x=6

We substitute the values to get:

$6=-\frac{b}{2*\frac{1}{4}}$

$6=-\frac{b}{\frac{1}{2}}$

$b=-\frac{1}{2}*6$

$b=-3$

Margarita [4] · Answer 2 · 2022-02-14T06:43:57+03:00

7 0

Answer:

B

Step-by-step explanation: