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# f(x)=x squared

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1. given that f(x)=x squared sketch these graphs, each on a seprate diagram, and find an expression, giving Y in terms of X, for each function.

a: y=f(x)-1
b: y=f(x+1)
c: y=f(2x)
d: y=-3f(x)

i no how to draw these graphs out but i do not get what it means by find the expression giving y in terms of x?

can any one please explain this
2. y=f(x)-1
f(x)=x^2
y=x^2-1
and etc
3. We know that . Then etc.
4. In these relations you just put the x square instead of f(x) and you find the expression of y in terms of x.
5. (Original post by sahil112)
given that f(x)=x squared sketch these graphs, each on a seprate diagram, and find an expression, giving Y in terms of X, for each function.

a: y=f(x)-1
b: y=f(x+1)
c: y=f(2x)
d: y=-3f(x)

i no how to draw these graphs out but i do not get what it means by find the expression giving y in terms of x?

can any one please explain this
They want to know the equations of the 4 graphs that you have drawn.
6. (Original post by Maths Buster)
They want to know the equations of the 4 graphs that you have drawn.
7. (Original post by sahil112)
They want the equations to involve x, not f. And so your 1st equation would be y = x^2; your 2nd equation would be y = [x + 1]^2. And so on.
8. (Original post by Maths Buster)
They want the equations to involve x, not f. And so your 1st equation would be y = x^2; your 2nd equation would be y = [x + 1]^2. And so on.
ah ok thanks for your help

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