elainestorm9633
20.10.2019 •
Mathematics
Me with thus quiz
#1 which equation represents a direct linear variation?
y=25x
y = x2
y=1x
y = x + 3
#2 which is the direct linear variation equation for the relationship?
y varies directly with x and y = 10 when x = 2.
y = x + 8
y=x−8
y = 2x + 6
y = 5x
#3 if f(x) varies directly with x and f(x) = 50 when x = –10, then what is f(x) when x = 15?
–150
–75
–30
–5
#4 the number of miles abigail’s boat travels, m, varies directly with the amount of time abigail spends boating, t. if she spends 2 h in her boat, she travels 19 mi.
which direct linear variation equation models the information?
m = 4.5t
m = 21t
m = 17t
m = 9.5t
#5 the total distance a balloon rises into the sky varies directly with the amount of time it is in the air. manny released his balloon, and after 5 s it had risen 40.5 yd.
how far will the balloon have risen after 10 s?
enter the answer in the box.
yd.
#6 the cost of buying apples varies directly with the number of apples purchased.
if 8 lb of apples cost $17.20, how many pounds of apples can be purchases for $43?
enter the answer in the box.
lbs.
#7 what is the constant of variation for the quadratic variation?
7y = 0.28x2
0.04
0.28
0.98
7
#8 which is the quadratic variation equation for the relationship?
y varies directly with x2 and y = 36 when x = 3.
y = 12x2
y=112x2
y=14x2
y = 4x2
#9 what is the constant of variation for the inverse variation?
xy=13
16
13
3
6
#10 write the inverse variation equation for the relationship:
y varies inversely with x and y = 4 when x = 2.
y=12x
y = x + 2
y = 2x
y=8x
Solved
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Ответ:
The first will be y=x+3
Step-by-step explanation:
Ответ:
Enjoy!=)