If –2 and –5 are the roots of the equation ax + bx + 20 = 0, find the values of a and b.
2 answers:
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Answer:
b=12.50p
Step-by-step explanation:
Given :
x y
0 0
2 25
4 50
6 75
8 100
10 125
To Find: Which equation can be used to determine p, the cost of b boots?
Solution :
Using point slope form Find the equation of line of the given coordinates
Let
Let
So, formula :
Now we are given that cost of b boots is p
Since we are given that x axis is Number of Boots and y in price
So in the equation put x = b and y = p
So, equation : b=12.50p
Hence Option 4 is correct
we know that
Linear function:
A linear function is a function whose graph is a straight line, that is a polynomial function of degree at most one
For exp:
Here , we are given
we can see that
x is in denominator
so, this can not be linear function........Answer