To find the y-intercept, Ruben noticed that x=0. He wrote the equation 3(0) + 5y = 15.
He then simplified it to 5y=15
What must be the value of y for this equation to be
true? How do you know?

answer: -1

step-by-step explanation:

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )