A-Level maths question
For:
a) how do you work out the vertex?
b) when working out the point of intersection why did they neglect the -4 for the first equation? I’ve followed the same method as stated in the mark scheme just confused why they did that
I’ve attached the question and mark scheme below
a) how do you work out the vertex?
b) when working out the point of intersection why did they neglect the -4 for the first equation? I’ve followed the same method as stated in the mark scheme just confused why they did that
I’ve attached the question and mark scheme below
Original post by kit2247
The attached question and mark scheme
What's the smallest value of |2x + 3| and what value must x be?
Original post by Muttley79
What's the smallest value of |2x + 3| and what value must x be?
Is this how you work out the vertex?
Original post by kit2247
Is this how you work out the vertex?
Yes
Original post by Muttley79
Yes
oh okay, do you know why the mark scheme neglected the -4 in the first equation when working out the intercepts?
Original post by kit2247
oh okay, do you know why the mark scheme neglected the -4 in the first equation when working out the intercepts?
Did you sketch the second graph ? Try that if not
Original post by Muttley79
Did you sketch the second graph ? Try that if not
Yes I drew the graph out like they did on the mark scheme
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