2(x^2 - 2x + 1) + 3
= 2x^2 - 4x + 2 + 3
= 2x^2 - 4x + 5
Answer:
x<-6
Step-by-step explanation:
Remember: We have to work from either the LHS or the RHS.
(Left hand side or the Right hand side)
You should already know this:
You should also know this:
So plugging in both of those into our identity, we get:
Simplify the denominator on the LHS (Left Hand Side)
We get:
LHS = RHS
Therefore, identity is verified.
Well for a line to be perpendicular to another the slope should be an opposite reciprocal, which in this case is -6/7. One example is y= -6/7x+2
Answer:
The best estimate for the solution of the system of equations is the ordered pair (7, 0.5)
Step-by-step explanation:
The way to solve this problem is to take a deep look into the picture, where we can see that the interception between the lines occurs right in x=7. thus, eliminating the first choice.
Next, we can see that the interception is somewhere far from the 'x' axis, hence 'y' variable can not be zero in this point.
Thus, we have our possible solution, without knowing anything else, the ordered pair (7, 0.5).
Remember, a system of equation has a solution when an interception occurs between its equations