Hello, can anyone help with these questions?

Thank you

Hello, can anyone help with these questions?

Thank you

sushi88

(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.

sushi88

(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.

ChiefKiasu

This smells like an e-maths question. I don’t like e-maths… so tedious. I prefer A-maths!

sushi88

I agree. E Maths is straight forward and tedious, A Math is conceptually more challenging.