Answer:
5
Step-by-step explanation:
2x - y when x = 0 and y = -5
2(0) - (-5) =
= 0 + 5
= 5
Answer:
y = -3x; the const. of prop. is -3.
Step-by-step explanation:
Recall: a proportional relationship satisfies y = kx, where k is the constant of proportionality.
In this particular example we see that (-3)(-2) = 6, (-3)(1) = -3, and (-3)(2) = -6.
This confirms adherence to the equation of a proportional relationship. The constant of proportionality here is -3.
The function governing the table is y = -3x.
Answer:
A.x+4
Step-by-step explanation:
We are given that a rational function which has a vertical asymptote at x=-4.
We have to find the term which appears in factored form in the denominator of the function.
We know that
To find the vertical asymptote of a rational function we will substitute the
denominator equal to zero.
Then, solve for x.
The value of x obtained are called vertical asymptotes.
By definition of vertical asymptote
x=-4
x+4=0
x+4 will be appears in factored form in the denominator of the function.
The value of tan2A given the trig expression is -128/21
<h3>Double angles</h3>
According to the double angle formula
tan 2A = 2tanA/1-tan²A
Given the following
sinA = 4/5 = opp/hyp
Tangent = 3units
TanA = opp/adj
TanA = 4/3
Substitute
Tan2A = 2(4/3)/1-(4/3)²
Tan2A = (8/3)/1-(16/9)
Tan2A = 8/3 * -16/7
Tan2A = -128/21
Hence the value of tan2A given the trig expression is -128/21
Learn more on double angle here: brainly.com/question/14691
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