axes of symmetry
in my book it says evaluate all axes of symmetry in these graphs.
for a I completed the square
for b I just realised that X=2 is the only solution therefore is the only axes of symmetry however
question 3 and 4 I don't know how to work this out.
do I complete the square? I'm not to sure I've tried quite a lot
for a I completed the square
for b I just realised that X=2 is the only solution therefore is the only axes of symmetry however
question 3 and 4 I don't know how to work this out.
do I complete the square? I'm not to sure I've tried quite a lot
Original post by utv
in my book it says evaluate all axes of symmetry in these graphs.
for a I completed the square
for b I just realised that X=2 is the only solution therefore is the only axes of symmetry however
question 3 and 4 I don't know how to work this out.
do I complete the square? I'm not to sure I've tried quite a lot
for a I completed the square
for b I just realised that X=2 is the only solution therefore is the only axes of symmetry however
question 3 and 4 I don't know how to work this out.
do I complete the square? I'm not to sure I've tried quite a lot
For b) it should be .
For (c) notice that you can rewrite it as which is a completed square form of a horizontal quadratic as opposed to your usual or shape one like in part (a). So can you see what the axis of symmetry there is?
For (d) you may notice that or are the axes of symmetry, but it's actually the line that is in the middle of the two.
Original post by utv
thanks for your help but for c wouldn't you have to make it =0 to use complete the square?
It already IS in completed square form once you move the 4 across. The square is completed in the variable here, not .
As I said, this is a sideways parabola which means it has equation as opposed to the usual vertical parabolas of the form .
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