Another submarine descent can be represented as y= -240 x where y is the elevation and x is time in hours. How long will it take
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Answer:
Explanation:
Roots of real numbers can be represented by <em>radicals</em> or by<em> exponents. </em>
First, I present some examples to show how exponents and radicals are related, and then generalize.
When you write 5² = 25, then 5 is the square root of 25.
And in general, if n is a positive integer and , then
is the nth root of x.
Also, if n even (and positive) and is positive, then
is the positive nth root of
Thus,
We have that
<span>f(x) = (3/2)*x + 4
case 1) for x=-8
</span>f(-8) = (3/2)*(-8) + 4--------> -8
point (-8,-8)
case 2) for x=-4
f(-4) = (3/2)*(-4) + 4--------> -2
point (-4,-2)
case 3) for x=-2
f(-2) = (3/2)*(-2) + 4--------> 1
point (-2,1)
case 4) for x=0
f(0) = (3/2)*(0) + 4--------> 4
point (0,4)
case 5) for x=2
f(2) = (3/2)*(2) + 4--------> 7
point (2,7)
case 6) for x=4
f(4) = (3/2)*(4) + 4--------> 10
point (4,10)
using a graph tool
see the attached figure
<span>f(x) = (3/2)*x + 4
case 1) for x=-8
</span>f(-8) = (3/2)*(-8) + 4--------> -8
point (-8,-8)
case 2) for x=-4
f(-4) = (3/2)*(-4) + 4--------> -2
point (-4,-2)
case 3) for x=-2
f(-2) = (3/2)*(-2) + 4--------> 1
point (-2,1)
case 4) for x=0
f(0) = (3/2)*(0) + 4--------> 4
point (0,4)
case 5) for x=2
f(2) = (3/2)*(2) + 4--------> 7
point (2,7)
case 6) for x=4
f(4) = (3/2)*(4) + 4--------> 10
point (4,10)
using a graph tool
see the attached figure