Answer:
The x-coordinate of the solution to this system of equations is <u>1</u>.
Step-by-step explanation:
Given,
We have to find out the x-coordinate of the equation.
Solution,
Let
Again let
Now using elimination method we will solve the equations.
For this we will add equation 1 and equation 2 and get;
Now on dividing both side by '9' we get;
Hence The x-coordinate of the solution to this system of equations is <u>1</u>.
Option A
If f(x) = and g(x) =
then
<em><u>Solution:</u></em>
Given that f(x) = and g(x) =
To find: (f - g)(x)
We know that,
(f – g)(x) = f (x) - g(x)
Let us substitute the given values of f(x) and g(x) in above formula,
For solving the brackets in above expression,
There are two simple rules to remember:
When you multiply a negative number by a positive number then the product is always negative.
When you multiply two negative numbers or two positive numbers then the product is always positive.
So the expression becomes,
Combining the like terms,
Thus option A is correct
