- Which functions have the same axis of symmetry?
Ay=(x - 1)^2: y = x2 - 2x-3
B y = (x2)^2: y = x-2x-3
Cy=(x - 1)^22 + 2; y = x^2 – X-3
D y = x² + 2x+3; y = x° -2x-3

fwms@lil_ben06

step-by-step explanation:

it is 10.6 according to my calculations

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