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

The first one, y = 1 - 3x

Step-by-step explanation:

y = 1 - 3x means: the second number is 3 times the first number less than 1

y = 3x + (-1) means: the second number is negative 1 more than 3 times the first number (1 less than 3 times the first)

y = -1 + 3x means: second number is 3 times the first number more than -1 (1 less than 3 times the first)

y = 3x - 1 means: 1 less than 3 times the first

The only equation that doesnt mean "1 less than 3 times the first" is y = 1 - 3x

the function makes a strait line horizontally with no x intercept but a y intercept at 9.