Question

Choose the equation below that represents the line that passes through the point (7, -2) and has a slope of -3

Answer 1

Option C

Explanation:

All of these equation have a slope of x=-3, as this is the only number that will be acompanied by an x (the slope of a function is the number on the equation that has an X). To know which one of this equations passes through the points (7;-2) we can supplant these numbers on each equation until the result at both sides are equals.

The correct answer is the option c, because if we supplant these numbers (x=7 and y=-2) on the equation, we get an equality.

`y + 2  = -3. (x - 7) // -2 + 2 = -3. (7 - 7) //0 = 0`