Answer:
2x+1=y
Step-by-step explanation:
Parallel means has the same slope, so slope equals 2
2x+b=y (we don't know the y-intercept)
plug in x and y
2(-4)+b=-7
-8+b=-7
b=1
so, 2x+1=y
To solve this equation from the information given above, I ordered it 5x+12=8x. To solve, I subtracted 5x from each side, canceling the 5x to your left, leaving only the number 12. 8x minus 5x equals 3x. Take 3x and divide on both sides. 3x/3x cancels the 3, leaving 12/3 equals 4. Finally, x equals 4.
We know that
The sum of the lengths of any two sides of a triangle
must be greater than the length of the third side.
therefore
(3+3/4)=3.75 in
the third side must be < 3.75 in
the length could be 3 in