
Hello, can anyone help with these questions?
Thank you
Hello, can anyone help with these questions?
Thank you
(a) y = x + 6/x
p = 4 + 6/4 =5.5
(c) y = 6.5 => x = 5.4
(d) coordinates of point where gradient = -2 is (1.4, 5.7)
(e) y = 3x/2 + 6/x
plot this graph to obtain the solutions for 3x/2 + 6/x = 7
x 1 1.5 2 2.5 3 4
y 7.5 6.25 6 6.15 6.5 7.5
You can stop as long as the 2 end points are > 7 which is the solution you want to find on the graph.
So, from the graph, correct to 1 decimal place, the 2 possible solutions for x is 1.1 and 3.5
Note: You need a curve rule to draw the curve in order to get a more accurate answer
PS: Please click “Accept Answer” if the answer is correct.
(a) y = x + 6/x
p = 4 + 6/4 =5.5
(c) y = 6.5 => x = 5.4
(d) coordinates of point where gradient = -2 is (1.4, 5.7)
(e) y = 3x/2 + 6/x
plot this graph to obtain the solutions for 3x/2 + 6/x = 7
x 1 1.5 2 2.5 3 4
y 7.5 6.25 6 6.15 6.5 7.5
You can stop as long as the 2 end points are > 7 which is the solution you want to find on the graph.
So, from the graph, correct to 1 decimal place, the 2 possible solutions for x is 1.1 and 3.5
Note: You need a curve rule to draw the curve in order to get a more accurate answer
PS: Please click “Accept Answer” if the answer is correct.
This smells like an e-maths question. I don’t like e-maths… so tedious. I prefer A-maths!
I agree. E Maths is straight forward and tedious, A Math is conceptually more challenging.