A line passes through the points(4,10) and (9,20) Write a linear function in terms of X and Y for this line

y = 2x + 2

Step-by-step explanation:

given       : line passes through the points (4,10) and (9,20)

Required :  write a linear function in terms of x and y

solution   :

substitute the coordinate points into the equation: y = mx + b

(x=9, y=20)      _   20 = 9m + b

(x=4, y=10)            10 = 4m + b  

subtracting           10 = 5m

                               m = 10/5

                               m = 2

substitute x=2 back into eq.1 to solve for b

20 = 9m + b

20 = 9(2) + b

20 - 18 = b

b = 2

therefore the straight line equation is:

y = mx + b

y = 2x + 2

the answer is thin because within context, the stanza concludes the and frail tone the people have toward each other, and the fact that it would be thin, makes the most sense compared to "pliable" or "not hard or firm to the touch". hope this , good luck.

step-by-step explanation:

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