Question

If the vertex function f(x) is at (1, 1), where is the
vertex of the function f(x - 2) + 1?
​

Answer 1

Step-by-step explanation:

Correct option is

B

−3<x<1

Since the graph of function f is a parabola,

Thus, equation of parabola is y=(x+3)(x+1)

⇒y=x

2

+4x+3⇒y−3+2

2

=x

2

+2×x×2+2

2

⇒y+1=(x+2)

2

This can also be written as (x+2)

2

=4×

4

1

×(y+1)

Comparing the above equation to the equation of a parabola, (x−h)

2

=4a(y−k), where (h,k) is the coordinates of vertex of parabola, we have,

(h,k)≡(−2,−1)

So, the x coordinate of the vertex is −2 which lies in the interval −3<x<1

Answer 2

Answer:

-

yar ap logon ki app buhat fazool hai Kia faida iska jab ans Nahi pata chalte saheeh