You would use the Pythagorean there on which is a^2+b^2=c^2, from there you plug int what they gave you and solve for b, and b=12
Slope = (2+5)/(-3-1) = 7/-4 = -7/4
answer is B -7/4
<span>By the Pythagorean theorem
AB = </span>√(12²+5²) = √169 = 13 units
I personally use y2-y1 over x2-x1 because it's simple. Plot two y values and two x values. The first ones you plotted are x1 and y1, the others are x2 y2. Now subtract y2-y1 and x2-x1. Afterwards, divide the y value by the x value, that will give you slope.
Answer:
x=$59.69
Step-by-step explanation:
We can create a proportion to find the answer.
Thus, we get 4 hr/$39.79=6 hr/$x.
Cross multiplying gives us 4x=238.74, and solving for x gives us $59.685.
We can round to $59.69.