Maths-
General
Easy
Question
Write a function in the form Y = mx + b for the line that contains the points (-8.3, -5.2) and (6.4, 9.5)
Hint:
Use two – point form
The correct answer is: y = x + 3.1
The two points given are (- 8.3 , - 5.2) and (6.4 , 9.5)
Using two – point form, equation of the line is
(y – y1) = m (x – x1) where m = 
m = 
= 
= 1
Now, equation of the line is (y – y1) = m (x – x1)
(y – 9.5) = 1 (x – 6.4)
y – 9.5 = x – 6.4
y = x – 6.4 + 9.5
y = x + 3.1
m = = 1Now, equation of the line is (y – y1) = m (x – x1)
(y – 9.5) = 1 (x – 6.4)
y – 9.5 = x – 6.4
y = x – 6.4 + 9.5
y = x + 3.1
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