Answer: x=1
Step-by-step explanation:
You need to open up the parenthesis so you multiply every term inside the parenthesis by -7.
1. -7x + 14 + 1 = 15 -7x
2. Combine like terms -7x + 15 = 15-7x
The two sides of the equation are the same so that means that x=1
The equation of the line is y=-2x+3.
Answer:
The point (-4,5) is on the line
Step-by-step explanation:
You can replace the x and y values to determine if it is a true statement
First Statement
5= 2(-4)+13 -> 5= -8+13 -> 5=5 true
Second Statement
-4=2(5)+13 -> -4= 10+13 -> -4 ≠ 23 false
You can automatically eliminate the next two answers because you already found that the first statement is true and because you can find points using an equation.
Polygons are closed figures so any figure that is not closed is not a polygon
