Question

Graph y=x^2 and y=4x^2 on the same grid. Describe the transformation that has been applied to y=4x^2 in relation to its parent function.

Answer 1

@ganeshie8

Answer 2

help me plz!! <3

Answer 3

i think the graph has compressed by a factor of "4".

Answer 4

http://www.dpcdsb.org/NR/rdonlyres/B27A0C85-4403-40BD-8277-DB8AD2A5EE2A/126117/Lesson8TransformationstoGraph.pdf

Answer 5

In this case, it would be a stretch of 4.

Answer 6

i checked it, the original graph compresses inward..ive even attached a picture

Answer 7

but i dont understand how tho?

Answer 8

Okay for vertical transformations, it's named oddly. If that number in front of x is greater than 1 (in this case it is 4), it's called a stretch. If it's between 0 and 1, (e.g. 0.5) it would be a compression.

Answer 9

To help, think of a vertical stretch as pulling down on the parabola to stretch it out, not sideways.

Answer 10

dear i know that but when i graph both of those equation i get a different picture but why??

Answer 11

Basically in y = 4x^2 all of the y values have been multiplied by 4. Just call it a vertical stretch of 4.

Answer 12

so basically it's an exponential equation oh i c...thanks

Answer 13

Oh y = x^2 is called a quadratic, y = b^x would be an exponential

Answer 14

yeah sowee...lol it's quadratic