Direct , Constant Variation

[Danny 0]

I need help on math.How..Identify the slope of each direct variation. (y=kx)y = 7k

[fffanatics 0]

I am pretty sure (but not definite) that the slope on y = xk is the derivative of xk thus it would be x*power of k thus just x. If you dont think this is right respond or atleast post that this is correct.

[Danny 0]

I am pretty sure (but not definite) that the slope on y = xk is the derivative of xk thus it would be x*power of k thus just x. If you dont think this is right respond or atleast post that this is correct.

um its y = kx?

[beeseven 0]

Do you mean y=7x? Wouldn't that just be 7?

[jlhaslip 4]

y=mx + bwhere m is the slope and b is the x-intercept offset. The slope of y=kx would be k.

[iGuest 3]

Actually its Y-intercept...But I think k as the slope is correct

-reply by icantsay

[iGuest 3]

study this!Direct , Constant Variation

Write an equation of variation for y = 30 when x = 5, where y varies inversely as x.

An equation of the form y = ^k/_x expresses inverse variation.

Substitute the values of x and y to find k.

30 = ^k/₅

Solve to find k.

Multiply both sides by 5.

150 = k

So, the equation of variation is,

y = ¹⁵⁰/_x