What is the slope of the line passing through the points (- 2, 1 ) and ( 6, - 1)? * A 2
B - 4
C - ¼
D ½

C. - ¼

Step-by-step explanation:

1) if A(-2;1) and B(6;-1), then the required slope can be calculated according to the formula:

2) after the substitution the slope is:

3) C. - ¼

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west

the answer would be  

a.

3: 1

step-by-step explanation: