Step-by-step explanation:
y=6+4x, as equation (iii)
=> -5x-(6+4x)=21
=> -5x-6-4x=21
=> -5x-4x-6=21
=> -9x-6=21
=> -9x=21+6
=> -9x=27
x= -3, by dividing both sides by -9
So, by inserting x in the first equation,
=> -4(-3)+y=6
=> 12+y=6
=> y=6-12
=> y= -6.
Therefore, x= -3 and y= -6
Answer:
Step-by-step explanation:
We know the definition of both functions: 
, and 
A) In order to evaluate what 
, let's first investigate what g(-1) is using the definition for this function:
Now let's find what f(2) is using f(x) definition: 
B) In order to evaluate what 
, let's first investigate what f(3) is using the definition for this function:
Now let's find what g(7) is using the definition for this function:
Answer:
Step-by-step explanation:
Answer:The equation for inverse proportion is x y = k or x = k/ y. Therefore, for finding the value of the constant k, you can use the known values and then use this formula to calculate all the unknown values.
Answer:
look this up ok
Step-by-step explanation:
Graph axis of symmetry vertex and max and min, domain and range
