Answer:
The domain ⇒ x ∈ real number
The range ⇒ y ≥ -3
The y-intercept ⇒ (0 , -1)
Step-by-step explanation:
∵ y = 2Ix - 1I - 3
∴ y = 2(x - 1) - 3
∴ y = 2x - 2 - 3 = 2x - 5 ⇒ positive slope
∴ y = 2(-x + 1) - 3
∴ y = -2x + 2 - 3 = -2x - 1 ⇒ negative slope
∴ 2x - 5 = -2x - 1 ⇒ 4x = 4 ⇒ x = 1
∴ Y = 2(1) - 5 = -3
∴ The two lines intersect each other at (1 , -3)
∴ The domain is x ∈ real number
∴ The range is y ≥ -3
∴ The y-intercept = -1 ⇒ (0 , -1)
Sorry but you can go to quizlit an get the answer.
Answer:
B) x^2 – 1
Step-by-step explanation:
x(x – 1)(y + 1)
FOIL (x-1)(y+1)
firsy: xy
outer 1x
inner -1y
last (1)(-1) =-1
Add them together xy +x-y-1
x( xy +x-y-1)
Replace xy with 1
x( 1+x-y-1)
x(+x-y)
Distribute
x^2-xy
But xy=1
x^2 -1
the answer is 52°
use the laws of trig
its a right triangle, so cotan 9/7 is 52°
Write 6% as a decimal : 6% = 0.06
Multiply the price of the shirts by 0.06:
Tax = 24.00 x 0.06 = $1.44