All questions on Maths

what must be the value of k if (k 6) lies on the graph of y=4x-6

Emma

Answers

put x=0 in your equation so that you get the value of y, this value is where your equation will intercept the y axis as on the y axis x=0, then put y=0 in the equation so you get the value of x this value is where the graph intersects the x axis as y=0 on the x axis, please make your question a little more clearer what you mean by k and k 6?

Rabia U.

05 February 2013

you are given the y-coordinate which is 6 so substitute it in the equation 6 = 4x - 6 4x = 12 x = 3

vikram1510

05 February 2013

Add an answer

Graphs

The curve with the equation y=cosx/(2x+1), x> - 1/2 intersects the line y=1/2 at the point where x=α. i) Show that α lies between 0 and pi/2 ii)Use the iteration x(subscript n+1) - cosx(subscript n)-1/2 with x1=0 to find x3, giving your answer to 3d.p.

Emma

hi, i need to graph a function with a domain of -4 is less than or equal to x which is less than or

Emma

How do you draw the graph of x^2 + y^2 = 4

I really stuck, help pleeeaase asap.

Emma

How do you work out the 9th decile of a graph?

It's in a statistics practise paper, but i dont know what a decile is or how im supposed to work it out. Any help would be appreciated 🙂

Emma

on a graph plot y=mx+b: m>0,b0,b>0

Emma

Sketch a graph:

Hey guys 🙂 I'm kinda stuck on this question.. so i have to sketch the graph: y=(x2-4)/(x2+4x+6) so I know you have to find the vertical asymptote which doesn't exist by the way and the horizontal asymptote is y=0. the x-intercept=2, y-intercept=-2/3. Ok, now I need to draw the graph now but i don't really know how.

Emma