Given z varies jointly as x and y, use the given values to find an equation that relates x, y, and z.
1 answer:
Answer:
z = 2.25xy
Step-by-step explanation:
Given z varies jointly as x and y then the equation relating them is
z = kxy ← k is the constant of variation
To find k use the condition x = 3, y = 8 and z = 54 , then
54 = k × 3 × 8 = 24k ( divide both sides by 24 )
= k = 2.25
z = 2.25xy ← equation of variation
You might be interested in
f(x) =
note the range is {1, 5, 25, 125 } which can be expressed as
{ ,
,
,
}
the exponents being the domain { 0, 1, 2, 3 }
thus f(x) = an exponential function