Question

Line A is represented by the equation given below: x + y = 3 What is most likely the equation for line B, so that the set of equations has infinitely many solutions? 3x + 3y = 3 3x + y = 3 x + y = 9 3x + 3y = 9

Answer 1

3x + 3y = 9

Explanation:

Answer 2

3x + 3y = 9

Explanation:

Multiplying the given equation by 3 gives you ...

3(x + y) = 3(3)

3x + 3y = 9 . . . . . . matches the last choice

This is an equation for the same line as the given equation, so the lines will have infinitely many points in common (infinitely many solutions).