Answer:
Step-by-step explanation:
Given
Solving (a): In vertex form
The vertex form of an equation is:
To do this, we make use of completing the square method.
We have:
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Take the coefficient of x (i.e. -6)
Divide by 2; -6/2 = -3
Square it: (-3)^2 = 9
Add and subtract the result to the equation
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Factorize
Factor out x - 3
Express as squares
Hence, the vertex form of is:
Solving (b): State the coordinates of the vertex.
In ; the vertex is: (h,k)
The vertex of will be
It’s should be -10 answer
Answer
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Y=5(x+4)^2-40
The 2 is to the second power but I can’t type that on my phone
Answer: 2 : 7
Step-by-step explanation:
Number of boys = 4
Number of girls = 10
Total number of students = total number of boys + total number of girls ,that is
Total number of students = 4 + 10
= 14
Therefore , the ratio in the simplest form that compares number of boys to total number of students is given by
number of boys : total number of students , that is
4 : 14
which will be
2 : 7 in the simplest form