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The value of f(-6) is -12.2
Explanation:
Given that the function
We need to determine the value of f(-6)
The value of f(-6) can be determined by substituting the value for in the function and simplify the function.
Hence, let us substitute in the function, we get,
Let us apply the rule , we get,
Multiplying the numbers, we get,
The value of
Substituting the value of , we get,
Subtracting the denominator, we have,
Dividing, we have,
Rounding off to the nearest tenth, we have,
Thus, the value of f(-6) is -12.2
Answer:
y = - x - 5
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 )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 6, - 3) and (x₂, y₂ ) = (6, - 7)
m = =
= -
Note the line crosses the y- axis at (0, - 5) ⇒ c = - 5
y = - x - 5 ← equation of line