If two lines are perpendicular, then the product of the slope is -1.
Thus, the slope of line c is m which is the same as line b.
What is the linear system?
It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.
Given
Line b is perpendicular to line a, and line c is perpendicular to line a.
To find
The slope of line c.
We know that the slope theorem
If two lines are perpendicular, then the product of the slope is -1.
Let the slope of line b be m, then the slope of line a will be .
[tex]\rm m_am_b = -1[/tex]
Then
[tex]\rm m_a = -1/m_b[/tex]
Then the slope of line c will be.
[tex]\rm m_am_c = -1[/tex]
Then
[tex]\rm m_c = m_b[/tex]
Thus, the slope of line c is m which is the same as line b.
More about the linear system link is given below.
https://brainly.com/question/20379472