Question

.

Answer 1

first one is right

Answer 2

i didn't get there yet

Answer 3

second one is wrong

Answer 4

the minus sign means what was once up is now down
that reflects across the x axis, not the y axis

Answer 5

to be honest i never understood this terminology, maybe you can ask someone else
i see what the difference is, but i don't know what "It shrinks the graph vertically to 1/3 the original heigh" actually means

Answer 6

if you want to see a side by side comparison, look here
http://www.wolframalpha.com/input/?i=y%3Dx^2%2C+y+%3D+%28x%2F3%29^2

Answer 7

"shrinks vertically"
"stretches horizontally"
i think these people make these terms up