if the point (3,a) in on the graph of 3y=4x-1, what is the value of a

Thank you for the opportunity to help you with your question!

3y=4x-1 can as well be written as y=4/3x-1/3

in the equation 4/3 is the gradient while -1/3 is y intercept

But at y intercept x =0; two points are (3,a) and (0,-1/3)

{a-(-1/3)}/3-0=4/3

(a+1/3)/3=4/3 the multiply both side by 3

a+1/3=4

a=4-1/3

a=11/3

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