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Select all the transformations of f(x) = x2 that combine to result in the graph of function g below.

A parabola with vertex negative 1 comma negative 2 that opens downward. The graph passes through the points negative 3 comma negative 3 and 1 comma negative 3.

Group of answer choices

vertical stretch by a factor of 2

translation of 1 unit right

translation of 2 units up

translation of 1 unit left

reflection across the x-axis

horizontal stretch by a factor of 2

translation of 2 units down

Answer :

Answer:

Options 4, 5 and 7.

Step-by-step explanation:

The general function is

[tex]f(x)=x^2[/tex]

The vertex form of a parabola,

[tex]g(x)=a(x-h)^2+k[/tex]        ...(1)

where, a is a constant and (h,k) is vertex.

It is given that vertex of a parabola is (-1,-2).

[tex]g(x)=a(x-(-1))^2+(-2)[/tex]

[tex]g(x)=a(x+1)^2-2[/tex]       ...(2)

It passes through (-3,-3).

[tex]-3=a(-3+1)^2-2[/tex]

[tex]-3+2=4a[/tex]

[tex]-1=4a[/tex]

[tex]-\dfrac{1}{4}=a[/tex]

Put this value in (2).

[tex]g(x)=-\dfrac{1}{4}(x+1)^2-2[/tex]

Now,

h=1>0, so translation of 1 unit left.

a=-1/4<0 Reflection across the x-axis and vertical compression by factor 4.

k=-2<0, translation of 2 units down

Therefore, the correct options are 4, 5 and 7.

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