Higher HW for Mon 22nd Sept

Hi Guys

Can you do Q4 from the sheet below:

Differentiation – Practice 1

Can you do Q4 from the sheet below:

Straight Line – Practice

Mr Mac

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7 Responses to Higher HW for Mon 22nd Sept

  1. Kaitlin Currie says:

    Hi, me AGAIN, im very confused. What would u do for 4b on the straight line question

    • Hi Kaitlin

      No problem at all, that’s what the Blog is for. In question 4b it asks for the intersection on the y-axis (point D). The y-intercept in other words, so make x=o to find the y value.

      What exactly is it you are wanting to speak to me about RE Differentiation? Is it just notes to catch up? Was it functions you mean?

      Mr Mac

  2. Kaitlin Currie says:

    Also can I see u monday lunchtime for the differentiation stuff

  3. EuanW says:

    I know I have got 4a) wrong as I have x=0 and 9/4
    I had x*2(9-4x).
    Where did I go wrong ?

  4. EuanW says:

    Sorry still stuck. I got to x(3x-2x)(3x+2x)=0

    • Hi Euan

      Actually just got a chance to look at the whole thing again. I’m certain you were correct the first time. Once you differentiate then you do indeed get x=0 and x=9/4.

      However, those are just the stationary points. You still have to find the values for x=0 and y=0.

      Mr Mac

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