Question

A line passing through the point (-21, 0.5) with a slope of 0.14 has the equation:

a) y = 0.14x + 2.5
b) y = 0.14x - 1.5
c) y = -0.14x + 2.5
d) y = -0.14x - 1.5

Answer 1

The slope of a line passing through two points can be found using the formula: slope = (y2 - y1) / (x2 - x1).

Step-by-step explanation:

The slope of a line passing through two points can be found using the formula:

slope = (y2 - y1) / (x2 - x1)

Using the given points, we can substitute the coordinates into the formula:

slope = (26.8 - 0.1) / (7 - 1) = 4.5

Therefore, the correct answer is b. 4.5.