the price of a mobile phone was $600 in 2007. The price of a mobile phone is 2019 as increased to $1,100. What is the inflation
1 answer:
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Answer: It has two distinct real zeros.
Step-by-step explanation:
The formula that is used to calculate the discriminant of a Quadratic function is the one shown below:
In this case you have the following Quadractic function provided in the exercise:
Let's make it equal to 0:
You can identify that:
Knowing these values, you can substitute them into the formula and then evaluate:
Therefore, since:
You can determine that the it has two distinct real roots.
Given:
Find: values belong to the solution
Explanation:
and
so those values are solution which is x<12
i.e; x=4 and x=11