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9
9
9
Figuren visar grafen till funktionen
y
=
f
(
x
)
y=f(x)
y
=
f
(
x
)
.
\newline
Bestäm med hjälp av grafen
\newline
a)
f
(
2
)
f(2)
f
(
2
)
\newline
b) lösningen till ekvationen
f
(
x
)
=
2
f(x)=2
f
(
x
)
=
2
.
View step-by-step help
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Math Problems
Algebra 2
Sum of finite series starts from 1
Full solution
Q.
9
9
9
Figuren visar grafen till funktionen
y
=
f
(
x
)
y=f(x)
y
=
f
(
x
)
.
\newline
Bestäm med hjälp av grafen
\newline
a)
f
(
2
)
f(2)
f
(
2
)
\newline
b) lösningen till ekvationen
f
(
x
)
=
2
f(x)=2
f
(
x
)
=
2
.
Find
f
(
2
)
f(2)
f
(
2
)
:
a) To find
f
(
2
)
f(2)
f
(
2
)
, look at the graph where
x
=
2
x=2
x
=
2
and see what
y
y
y
-value it corresponds to.
Solve
f
(
x
)
=
2
f(x)=2
f
(
x
)
=
2
:
b) To solve the equation
f
(
x
)
=
2
f(x)=2
f
(
x
)
=
2
, look for the
x
x
x
-value(s) where the graph intersects the line
y
=
2
y=2
y
=
2
.
(
2
2
2
) value:
a) (
2
2
2
) appears to be
3
3
3
on the graph.
Intersections with
y
=
2
y=2
y
=
2
:
b) The graph intersects the line
y
=
2
y=2
y
=
2
at
x
=
1
x=1
x
=
1
and
x
=
3
x=3
x
=
3
.
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