Answer:
B.
Step-by-step explanation:
2x+4-1
Y
=
−
2
x
+
5
y
=
-
2
x
+
5
Use the slope-intercept form to find the slope and y-intercept.
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Slope:
−
2
-
2
y-intercept:
(
0
,
5
)
(
0
,
5
)
Any line can be graphed using two points. Select two
x
x
values, and plug them into the equation to find the corresponding
y
y
values.
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x
y
0
5
5
2
0
Answer:
1st option
Step-by-step explanation:
Given y varies inversely as x then the equation relating them is
y = 
← k is the constant of variation
To find k use (3, 8 ) , that is x = 3 when y = 8 , then
8 = 
( multiply both sides by 3 )
24 = k
y = 
← equation of variation
1 day = 24 hours
1 day = 103 680
therefore 24 hours = 103 680
1 hour = 103 680 ÷ 24
= 4320
1 hour = 60 mins
1 hour = 4320
therefore 60 mins = 4320
1 min = 72 beats
