Questions: 1. What rational algebraic expression will best represent the situation? 2. What is Cona's rate of planting succulents if there are 3 persons who wanted to barter succulents? how about if there are 7 persons who wanted to barter succulents?
Answers & Comments
1. Algebraic expression where both the numerator and the denominator are polynomials e.g. x+3x. is called a rational expression. Since the denominator can't be zero there are values of x which are excluded from the rational expression.
2. You are asked to give Cona's rate of planting succulents, so the expression that represents the expression is
2b + 4/b - 1
Then, you have substitute the value of b
Di ba b represents the number of persons who wanted to barter?
So, you have to substitute the values of b in the expression
For b = 3,
It will become
2(3) + 4/(3) - 1
=6 + 4 / 2
=10/2
=5
For b = 7
It will become
2(7) + 4/ (7) - 1
=14 + 4 / 6
=18/6
=3
Therefore Cona's rate are 5 and 3 respectively