Complete the expression so it forms a perfect-square trinomial. x^2 - 5x + _____
2 answers:
Complete the expression so it forms a perfect-square trinomial.
To make perfect square trinomial we use completing the square method
In completing the square method, we take the coefficient of x
divide it by 2 and then square it
the coefficient of x is -5
divide it by 2 ,
then square it ,
makes a perfect square trinomial
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Answer:
Option A is correct.
The constant of variation is,
Step-by-step explanation:
The Direct variation says that:
if a vary directly to b then, the equation is of the form: a = kb where k is the constant of variation.
Given: if y varies directly as x.
By definition of direct Variation:
y = kx where is the constant of variation.
It is also given that: y = -3 and x =2
Solve for k;
-3 = 2k
Divide both sides by 2 we have;
Therefore, the constant of variation is,