A line with a slope of 2 passes through (3,9). Which choice is an equation of this line?

1. y - 3 = 2 (x - 9)
2. y + 9 = 2x + 3
3. y - 9 = 2 (x - 3)
4. y - 9 = 2x - 3

The answer to your question is number 3.

Step-by-step explanation:

Data

slope = m = 2

Point = (3, 9)

Process

1.- Write the equation of the line in the form point-slope

               y - y1 = m(x - x1)

2.- Identify the values of x1 and y1

        x1 = 3   y1 = 9

3.- Substitution

               y - 9 = 2(x - 3)

4.- Simplify

              y - 9 = 2x - 6

              y = 2x - 6 + 9

5.- Result

              y = 2x + 3       slope y-intercept form

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.

answer by yourhope:

hi! : )

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