Question

http://prntscr.com/cgohi4

Answer 1

is my correct answer:
The graph is stretched by a factor of 2, moves 2 units to the left, and 1 unit up.

Answer 2

if earlier it was x^2, now it is 2(x+2)^2 + 1 , it means first step(x+2 instead of x) was that it has moved towards the positive x axis(Which is on the right).
Then it got stretched by a factor of 2(2(x+2)^2) and one step up because of +1.
So answer is
Stretched by factor of 2, 2 units to the right , one step up.

Understood ?

Answer 3

That second one is in the vertex form, the vertex point is (h,k)

y = a*(x-h)^2 + k

Answer 4

See the minus sign in (x-h), the sideways move is -2,

y=2*(x- (-2))^2 + 1

so it shifts 2 units left and 1 unit up

Answer 5

ok so my answer was correct?

Answer 6

The graph is stretched by a factor of 2, moves 2 units to the left, and 1 unit up.

Answer 7

The 2 factor will make the parabola skinnier... think about it, for a given X value, the Y value will be larger for numbers >1

Answer 8

you can go here and graph.. https://www.desmos.com/calculator

graph a*(x+2)^2 + 1
add slider for a
change values of a and look at what the graph does

Answer 9

The second one is right