Answer:
Replace
F
(
x
)
with
y
.
y
=
9
x
Interchange the variables.
x
=
9
y
Solve for
y
.
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y
=
x
9
Solve for
y
and replace with
F
−
1
(
x
)
.
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F
−
1
(
x
)
=
x
9
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
becaus ei did
Answer:
4 hours
Step-by-step explanation:
Write an equation
19 +1.5x < 15+2.75x
Subtarct 15 on both sides
4+1.5x<2.75x
subtract 1.5x on both sides
4< 1.25x
Divide 1.25 on each side
3.2<X
Since they on,y charge per hour so 4 hours
Answer:
or 
Step-by-step explanation:
The perpendicular slope is the opposite-reciprocal of the original slope:
Perpendicular slope of -2 is 
Write the equation in point-slope form (
):
Convert to slope-intercept form if needed:
The larger fractron will be the fraction with the greater numerator.
ex. 4/5 is greater than 2/5
