Question

Consider this system of linear equations:

Answer 1

Answer: The answer is A: m = -3 and b = -3.

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Answer 2

Answer: m = - 3 and b = - 3.

Justification:

A system of linear equations will not have solutions if the two lines are parallel.

Two equations are parallel if their slopes (m) are equal and the y-intercep (b) are different.

Since the given equation is y = - 3x + 5, the value of m of the other equation, y = mx + b, in order to make a system with no solution, needs to be  - 3, and the value of b need to be different to 5.

The only pair from the choices that meets that is the first option m = - 3 and b = -3.