Can you do Q4 from the sheet below:
Differentiation – Practice 1
Straight Line – Practice
Hi, me AGAIN, im very confused. What would u do for 4b on the straight line question
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?
Also can I see u monday lunchtime for the differentiation stuff
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 ?
Before you differentiate the function you must break the bracket Euan.
3x*3 – x*4
Sorry still stuck. I got to x(3x-2x)(3x+2x)=0
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.
Fill in your details below or click an icon to log in:
You are commenting using your WordPress.com account. ( Log Out / Change )
You are commenting using your Twitter account. ( Log Out / Change )
You are commenting using your Facebook account. ( Log Out / Change )
You are commenting using your Google+ account. ( Log Out / Change )
Connecting to %s
Notify me of new comments via email.