Question

What is the slope of the line that goes through the points (1,-2) and (3,6)?

A.) -4


B.) 2


C.) 4


D.) 1

Answer 1

(C). 4

Explanation:

`\mathrm{Slope}=(y_2-y_1)/(x_2-x_1)\\\\\left(x_1,\:y_1\right)=\left(1,\:-2\right),\:\\\left(x_2,\:y_2\right)=\left(3,\:6\right)\\\\m=(6-\left(-2\right))/(3-1)\\\\m = (6+2)/(3-1)\\ \\m = (8)/(2) \\\\Simplify\\\\Slope = m = 4`