Evaluate the expression for r=1.
Write your answer in simplest form.
–r+2/r–6
To evaluate the expression, we substitute r=1 into the expression and simplify.
-1 + 2 / 1 - 6
= -1 + 2 / -5
= -1 + (-2/5)
= -5/5 - 2/5
= -7/5
So, when r=1, the expression evaluates to -7/5.
To evaluate the expression –r + 2/r – 6 for r = 1, substitute the value of r into the expression.
-1 + 2/1 - 6
The numerator simplifies to -1 + 2 = 1.
And the denominator simplifies to 1 - 6 = -5.
Therefore, the expression simplifies to 1/(-5).
In simplest form, 1/(-5) can be written as -1/5.
So, when r = 1, the expression –r + 2/r – 6 evaluates to -1/5.