All SAT II Math II Resources
Example Questions
Example Question #21 : Single Variable Algebra
Solve:
In order to solve this inequality, we need to apply each mathematical operation to all three sides of the equation. Let's start by subtracting from all the sides:
Now we divide each side by . Remember, because the isn't negative, we don't have to flip the sign:
Example Question #1 : Solving Inequalities
Solve the inequality:
Add 26 on both sides.
Divide by two on both sides.
The answer is:
Example Question #1 : Solving Inequalities
Solve the inequality:
Distribute the negative through the terms of the binomial.
Subtract on both sides.
Add 18 on both sides.
Divide by 13 on both sides.
The answer is:
Example Question #2 : Solving Inequalities
Solve
The first thing we can do is distribute the and the into their respective terms:
Now we can start to simplify by gathering like terms. Remember, if we multiply or divide by a negative number, we change the direction of the inequality:
Example Question #185 : Sat Subject Test In Math Ii
Solve .
It can be tricky because there's a negative sign in the equation, but we never end up multiplying or dividing by a negative, so there's no need to change the direction of the inequality. We simply divide by and multiply by :
Example Question #11 : Solving Inequalities
Solve .
Remember, anything we do to one side of the inequality, we must also do to the other two sides. We can start by adding one to all three sides:
And now we divide each side by two:
Example Question #12 : Solving Inequalities
Solve .
The first thing we can do is distribute the negative sign in the middle term. Because we're not multiplying or dividing the entire inequality by a negative, we don't have the change the direction of the inequality signs:
Now we can subtract from the inequality:
And finally, we can multiply by . Note, this time we're multiplying the entire inequality by a negative, so we have to change the direction of the inequality signs:
Example Question #13 : Solving Inequalities
Solve .
We start by distributing the :
Now we can add , and subtract an from each side of the equation:
We didn't multiply or divide by a negative number, so we don't have to reverse the direction of the inequality sign.
Example Question #34 : Single Variable Algebra
What is the solution set for ?
Start by finding the roots of the equation by changing the inequality to an equal sign.
Now, make a number line with the two roots:
Pick a number less than and plug it into the inequality to see if it holds.
For ,
is clearly not true. The solution set cannot be .
Next, pick a number between .
For ,
is true so the solution set must include .
Finally, pick a number greater than .
For ,
is clearly not the so the solution set cannot be .
Thus, the solution set for this inequality is .
Example Question #181 : Sat Subject Test In Math Ii
Give the solution set of the inequality:
First, find the zeroes of the numerator and the denominator. This will give the boundary points of the intervals to be tested.
;
Since the numerator may be equal to 0, and are included as solutions. However, since the denominator may not be equal to 0, is excluded as a solution.
Now, test each of four intervals for inclusion in the solution set by substituting one test value from each:
Let's test :
This is false, so is excluded from the solution set.
Let's test :
This is true, so is included in the solution set.
Let's test :
This is false, so is excluded from the solution set.
Let's test :
This is true, so is included in the solution set.
The solution set is therefore .