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2 answers:
Answer:
Option C is correct
y = 15x
Step-by-step explanation:
Direct variation states that:
......[1]
then, the equation is in the form of:
, where k is the constant of variation.
From the given table :
consider any points;
x = 9 and y = 135
Substitute these in [1] we have;
Divide both sides by 9 we have;
15 = k
or
k = 15
then, the equation we have; y = 15x
Therefore, the constant of proportionality for the table and write in the form y = kx is, y = 15x
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Answer:
undefined
Step-by-step explanation:
(-7, -7) and (-7, 1)
To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)
Plug in these values:
(1 - (-7)) / (-7 - (-7))
Simplify the parentheses.
= (1 + 7) / (-7 + 7)
Simplify the fraction.
8/0
= undefined
Our line is a vertical line, which has an undefined slope.
Hope this helps!
Answer:
Zeroes : 1, 4 and -5.
Potential roots: .
Step-by-step explanation:
The given equation is
It can be written as
Splitting the middle terms, we get
Splitting the middle terms, we get
Using zero product property, we get
Therefore, the zeroes of the equation are 1, 4 and -5.
According to rational root theorem, the potential root of the polynomial are
Constant = 20
Factors of constant ±1, ±2, ±4, ±5, ±10, ±20.
Leading coefficient= 1
Factors of leading coefficient ±1.
Therefore, the potential root of the polynomial are .