9000008004
Level:
A
Given the function \(f(x) = -\frac{8}
{x}\),
evaluate \(f(-4)\).
\(2\)
\(- 4\)
\(4\)
\(32\)
A
9000005707
Level:
A
Let \(f\) be the linear
function \(f(x) = -x + 4\) restricted
to the interval \(x\in [ - 3;2] \).
Find the range of \(f\).
\([ 2;7] \)
\([ 1;6] \)
\([ - 3;3] \)
\([ - 1;2] \)
9000005802
Level:
A
Given the linear function \(f(x) = -\frac{1}
{4}x + 4\),
evaluate
\[
f(2a)\cdot f(-2a).
\]
\(16 -\frac{a^{2}}
{4} \)
\(0\)
\(4 - a^{2}\)
\(- 4 + a^{2}\)
9000004210
Level:
A
The function \(g\) is
graphed in the picture. Find \(g(0)\).
\(0\)
\(3\)
\(- 2\)
\(1\)
9000005705
Level:
A
Let \(f(x) = -\frac{1}
{2}x + a\). Which value of
the real parameter \(a\) in the
definition of the function \(f\)
guarantees \(f(2) = 2\)?
\(3\)
\(1\)
\(- 4\)
\(5\)
9000005708
Level:
A
Consider the linear function \(f(x)= -5x + 4\)
and points \(A = [1;-1]\),
\(B = [-2;-14]\),
\(C = [3;-11]\),
\(D = [-4;24]\).
How many of these points lies on the graph of the function
\(f\)?
\(3\)
\(1\)
\(2\)
\(4\)
9000005803
Level:
A
Identify an analytic expression of a linear function
\(f\) which
satisfies \(f(-2) = 5\)
and \(f(4) = 2\).
\(f\colon y = -\frac{1}
{2}x + 4\)
\(f\colon y = x - 2\)
\(f\colon y = -x + 6\)
\(f\colon y = -2x + 1\)
9000004209
Level:
A
The linear function \(g\)
is graphed in the picture. Find the analytic expression for the function
\(g\).
\(y = -\frac{3}
{2}x\)
\(y = \frac{3}
{2}x\)
\(y = \frac{2}
{3}x\)
\(y = -\frac{2}
{3}x\)
9000005702
Level:
A
Given the linear function \(f(x) = -2x + 3\),
evaluate \(f(2) + f(-2)\).
\(6\)
\(0\)
\(3\)
\(- 8\)
9000004903
Level:
A
Find the domain of the function \(f\colon y = \frac{3}
{\log _{5}(x-4)}\).
\(\mathrm{Dom}(f) = (4;5)\cup (5;\infty )\)
\(\mathrm{Dom}(f) = (0;\infty )\setminus \{4\}\)
\(\mathrm{Dom}(f) = (-4;\infty )\setminus \{5\}\)
\(\mathrm{Dom}(f) = (4;\infty )\)