Welcome to your Grade 9 Mathematics chapter 3
After carefully reading the following 30 questions, choose the correct answer.
1.
Which of the following is the solution for the quadratic inequality x2−x>12?
2.
What is the interval representation of a number x that lies between 2.4 and 10.6 (inclusive)?
3.
Which symbol is used to indicate that the boundary point is NOT included in a linear inequality?
4.
For a real number x, if $
5.
In a system of linear inequalities in two variables, the solution is represented by:
6.
Solve the inequality $
7.
If ax2+bx+c>0 and the discriminant is negative, the solution set is:
8.
Which of the following defines a quadratic inequality?
9.
When solving a system of linear inequalities like {y>x−2,y≤2x+2}, the dashed line represents:
10.
If a number x is correct to one decimal place as 2.4, its range expressed as an inequality is:
11.
What is the solution set for $
12.
In the inequality x2≤9, the solution is:
13.
Which inequality represents "at least 10"?
14.
If you multiply or divide both sides of an inequality by a negative number, what happens to the inequality sign?
15.
Solve the system {x>0,y>0}. Which quadrant contains the solution?
16.
The solution set of x2+1<0 for real numbers is:
18.
The inequality y≥x represents all points:
21.
If the quadratic ax2+bx+c=0 has no real roots and a<0, then ax2+bx+c<0 is true for:
22.
The point (0,0) satisfies which inequality?
23.
What is the solution set for x2−4≥0?
24.
In a system of inequalities, if there is no overlapping region, the solution is:
26.
If x<y and c<0, then:
27.
The inequality x2+x−6≤0 is solved by:
28.
What range of values for x satisfies $
29.
Solve the linear inequality 5−x≥2.
30.
Which of the following describes the set of points (x,y) such that x≥0?
