Answer:
A: There is no solution
Step-by-step explanation:
This is not a very likable question.
Y=3x-4
9x-3y=14
Put the y value from the first equation into the second.
9x - 3(3x - 4) = 14 Remove the brackets
9x - 9x + 12 = 14 Combine like terms on the left
12 = 14 When you get this kind of conclusion, that means there is no solution. I'll graph these two for you.
Blue: y =3x - 4
Green: 9x - 3y = 14
They never touch they never meet: they are parallel. They don't give a solution.
Answer:
Option (1)
Step-by-step explanation:
Given inequality is.
4x + 5 ≥ 13
We will further solve this inequality,
(4x + 5) - 5 ≥ 13 - 5
4x ≥ 8
x ≥ 2
Therefore, on a number line solution of x will be all values of x greater than equal to 2.
Which will be represented by and arrow starting with a solid point from x = 2 directing towards numbers greater than 2.
Option (1) will be the answer.
Answer:
<em>A=3 and B=6</em>
Step-by-step explanation:
<u>Increasing and Decreasing Intervals of Functions</u>
Given f(x) as a real function and f'(x) its first derivative.
If f'(a)>0 the function is increasing in x=a
If f'(a)<0 the function is decreasing in x=a
If f'(a)=0 the function has a critical point in x=a
As we can see, the critical points may define open intervals where the function has different behaviors.
We have
Computing the first derivative:
We find the critical points equating f'(x) to zero
Simplifying by -6
We get the critical points
They define the following intervals
Thus A=3 and B=6