A skirt originally cost $28. Alicia pays $21 for the skirt during a scale. What percent does Alicia save with the sale? (helpp )
2 answers:
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Answer:
The parabolic equation does not intersect the linear equation.
Explanation:
Given equation's:
- y = x² − 5x + 9
- y = -2x
To solve , use substitution method by inserting 2nd equation into 1st
when substituted y = -2x
collect terms
simplify
Find discriminant:
As the discriminant is negative, it tell us that they both does not intersect each other.
