CE
Chief Editor
Mar 23, 2024
Practice Quiz Mode
Take all 5 MCQs in interactive quiz mode with timer and progress tracking
If $(x+5)^{2}=4$, which of the following is a possible value of $x$?
Difficulty: Easy
A:
$1$
B:
$-1$
C:
$-2$
D:
$-3$
What is the minimum value of the function $f$ defined by $f(x)=(x-2)^{2}-4$?
Difficulty: Hard
A:
$-4$
B:
$-2$
C:
$2$
D:
$4$
$y=ax^{2}-c$
In the equation above, $a$ and $c$ are positive constants. How many times does the graph of the equation above intersect the graph of the equation $y=a+c$ in the $xy$-plane?
Difficulty: Medium
A:
Zero
B:
One
C:
Two
D:
More than two
Let the function $p$ be defined as $p(x)=\frac{(x-c)^{2}+160}{2c}$ , where $c$ is a constant. If $p(c)=10$ , what is the value of $p(12)$ ?
Difficulty: Hard
A:
10.00
B:
10.25
C:
10.75
D:
11.00
$f(x)=(x+0.25x)(50-x)$
The function $f$ is defined above. What is the value of $f(20)$?
Difficulty: Easy
A:
250
B:
500
C:
750
D:
2,000
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