4.7 is 10 times as much as what number
2 answers:
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Question 1) Function defining the table:
From the table the x-intercepts are -2 and 1. This means the factors are:
(x+2) and (x-1)
Let
The point (-1,-1) satisfy this function since it is from the same table.
Therefore the function is
We expand to get:
The standard form is:
Question 3) Parabola opening up
The x-intercepts are x=3 and x=7
The factors are (x-3), (x-7)
The factored from is
The curve passes through (5,-4)
The equation is:
Expand:
This is the standard form:
Question 3) Parabola opening down:
The x-intercepts are x=-5 and x=1
The factors are (x+5), (x-1)
The factored form is
We expand to get:
This is the standard form.
