The word you're looking for is "differentiate", not "derive".
Answer:
x=45
Step-by-step explanation:
2x+45+x=180 since it is on a straight line
3x+45=180
3x=135
x= 45
<h2>
Answer with explanation:</h2>
The average rate of change for function f(x) over the interval a ≤ x ≤ b is given by :-

So, the rate of change for function
over the interval −3 ≤ x ≤ 4 :

The rate of change for function
over the interval −3 ≤ x ≤ 4 :

So, the rate of change for g(x) is greater than f(x) over the interval −3 ≤ x ≤ 4.
Multiply by 48x+4y=28 3x-4y=6