Which is not a correct way to represent the relation "the second number is 1 less than three times the first number"?

y = 1 - 3x
y = 3x + (-1)
y = -1 + 3x
y = 3x - 1

Idon't see any graph, however the graph of the function : f(x) = x²-2x+3 is a parabola: 1) open upward (since a> 0)2) it intersects y-axis in 3 (y=3)3) its axis of symmetry is x = +1 ( -b/2a)4) it's minimum is y = -2, so its vertex is (1,-2)5) it doesn't intersect the x-axis since discriminant < 0 

Here’s a link to the answer: