2x-3y=-5 2x+y=7 what is the solution?
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Answer:
2
Step-by-step explanation:
The given equation of line is
We need to find the slope of a line which is perpendicular to the given line.
The given equation can be rewritten as
...(i)
If a line is defined as , then the slope of the line is
In equation (i), a=3, b=6 and c=18. So, slope of the line is
Let be the slope of perpendicular line.
We know that product of two perpendicular line is -1.
Multiply both sides by -2.
Therefore, the slope of perpendicular line is 2.