Directions: Represent the following using quadratic inequality. 1) Seven x squared minus x plus five is greater than or equal to eighteen
2) x squared minus nine x plus fifteen is less than zero
3) Twenty x squared plus x is less than or equal to zero
4) A square lot has a side measure of (x + 1) meters. Its area at least 1000 square meters.
Represent the area of the square lot using quadratic inequality.
• A quadratic equality has 2 as the highest degree and must contain any of
the inequality symbols (<, >, ≤, ≥).
• Quadratic inequalities in standard form can be written as:
2 + + < 0
2 + + > 0
2 + + ≤ 0
2 + + ≥ 0
where a, b, and c are real numbers and ≠ 0.
55
5) The profit of Aling Nena’s Suman and Kakanin stall is determined by () =
2 + 30
where x represents the number of suman sold. Using quadratic inequality, represent Aling
Nena’s negative profit for her stall.
pag mali sapak ah?(report q)
2) x squared minus nine x plus fifteen is less than zero
3) Twenty x squared plus x is less than or equal to zero
4) A square lot has a side measure of (x + 1) meters. Its area at least 1000 square meters.
Represent the area of the square lot using quadratic inequality.
• A quadratic equality has 2 as the highest degree and must contain any of
the inequality symbols (<, >, ≤, ≥).
• Quadratic inequalities in standard form can be written as:
2 + + < 0
2 + + > 0
2 + + ≤ 0
2 + + ≥ 0
where a, b, and c are real numbers and ≠ 0.
55
5) The profit of Aling Nena’s Suman and Kakanin stall is determined by () =
2 + 30
where x represents the number of suman sold. Using quadratic inequality, represent Aling
Nena’s negative profit for her stall.
pag mali sapak ah?(report q)
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