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Answer:
Step-by-step explanation:
Given inequality:
To solve this inequality, we need to <u>isolate</u> the variable on one side and the constant on the other. To do this, we can divide both sides by -5.
Note: If we are dividing both sides by a <u>negative integer</u>, the sign changes.
To simplify 15/-5, we can multiply -1 to the numerators and the denominators. As a result, the <u>negative sign</u> should transfer to the numerator, as when two <u>negative integers</u> multiply each other, the result is a positive integer.
For each x intercept the corresponding factor can be deduced. For x intercepts given at 1,2,3 , the equation can be written as
y= (x-1) (x-2) (x-3)
Because x=1 therefore x-1=0 , similarly x=2 , x-2=0 and , x=3 , x-3=0
or
y= x²+2x-3 (x-3)
or
y= x³+2x²-3x-3x²-6x+9
y= x³-x²-9x+9
