Answer:

Step-by-step explanation:
I don't know what level math you're taking but in lower level math this would be undefined, can't be simplified. But some higher levels simplify it with imaginary or complex number representations. So take your pick, but it's still undefined
Answer:
First Graph
1/2x-2 if its less than or equal to 6 is accurate
Answer:
Step-by-step explanation:

When you distribute you get 12x-24-7x=-80
when you combine like terms you get 5x=-56
answer : x = -11.2
Answer:
Step-by-step explanation:
We are to find the equation a line that passes through the point (8, 1) and which is perpendicular to a line whose equation is
.
We know that the slope of line which is perpendicular to another line is the negative reciprocal of the slope of the other line so it will be
.
Then, we will find the y-intercept of the line using the standard equation of a line:
Therefore, the equation of the line will be
.