Step-by-step explanation:
For x = 1
(1)
For x = -3,
(2)
For x = 3,
(3)
Let's add Eqn(2) and Eqn(3) together to eliminate b:
(4)
Next, multiply Eqn(1) by 3 and then add to Eqn(2) to get
(5)
Then we want to eliminate c by multiplying Eqn(4) by -2 and then adding to Eqn(5) and we will get
Now that we have the value for a, we can use either Eqn(4) or Eqn(5) to solve for c and we will get
Using the values of a and c on Eqn(1), we find that so therefore, our function f(x) has a form
Answer:
I didn't get you
Step-by-step explanation:
what??
Answer:
y = - x - 11
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
to calculate m use the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 10, - 7) and (x₂, y₂ ) = (- 5, - 9)
m = = - , hence
y = - x + c ← is the partial equation
to find c substitute either of the 2 points into the partial equation
using (- 5, - 9 ), then
- 9 = 2 + c ⇒ c = - 9 - 2 = - 11
y = - x - 11 ← in slope-intercept form
Answer:
x = 1
Step-by-step explanation:
Sum the coefficients of the polynomial, that is
1 - 6 + 11 - 6 = 0
Hence x = 1 is a root and (x - 1) is a factor of the polynomial
we know that
In the right triangle RSQ
------> equation
In the right triangle RST
------> equation
equate equation and equation
therefore
the answer is
the length of SR is