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Write the equation of the line that passes through (1,-2) and (2, 3)

1 Answer

1 vote

Answer:

y = 5x - 7

Explanation:

the equation you want to find is in the form of y = mx + b

(y2 - y1) / (x2 - x1) is a formula to determine the slope of a line from two points

(3 - [-2]) / (2 - 1) = m (m meaning slope)

5 / 1 = m

5 = m

now that you know m, you can solve for b by inserting one of the points in the slope form equation and the slope

y = mx + b

3 = (5)(2) + b

3 = 10 + b

subtract 10 from both sides

-7 = b

the equation will be y = 5x - 7

User James Mnatzaganian
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