To find the inverse, swap the x's and y's and solve for y. <em>Remember that a(x) represents y</em>
y = 
- 2 <em>given</em>
x = 
- 2 <em>x's and y's swapped</em>
x + 2 = <em>added 2 to both sides</em>
y(x + 2) = 1 <em>multiplied y on both sides</em>
y = 
divided (x + 2) on both sides
Answer: 
=
Answer:
The answers are (3,6) and (5,10) only
Step-by-step explanation:
Answer:
(t^2 -4) (t^2 +4)
(t-2)(t+2)(t^2+4)
Step-by-step explanation:
t^4 - 16
We can write this as the difference of squares
We know the dfference of squares is
(a^2 - b^2) = (a-b) (a+b)
( t^2 ^2 - 4^2) = (t^2 -4) (t^2 +4)
We can write t^2 -4 as the difference of squares
t^2 -4 = t^2 -2^2 = (t-2)(t+2)
Replacing this in
( t^2 ^2 - 4^2) = (t^2 -4) (t^2 +4) = (t-2)(t+2)(t^2+4)
Answer:
x=3
Step-by-step explanation:
Well if 4x>10, then x needs to be more than 2.5, (because 2.5*4=10) So the only answer left is x=3
Answer:
y= -3/4x+2
Step-by-step explanation:
3x+4y=8
-3x -3x
----------------
4y=-3x+8
Divided by 4 on each sides
y= -3/4x+2
