The inverse of the function is y = 
In order to find this, you must start by switching the y and x values. Once you do this, you can solve for the new y value and that will be in inverse. The work is done for you below.
y = 2x^2 + 2 ---> switch x and y
x = 2y^2 + 2 ---> subtract 2 from both sides
x - 2 = 2y^2 ---> divide both sides by 2
= y^2 ---> take the square root of both sides.
= y
Well she has to spend £5 on membership and so she has £24.75 left and one movie is £1.25 so you do 24.75 / 1.25 to get 19.8 so she can view 19 movies this month. Hope this helps :)
Time = distance / speed
time = (7/8) / (3/8)
= 7/8 * 8/3
= 7/3 or 2 1/3 minutes or 2 minutes and 20 seconds
<u>To find the area of a complex shape</u>:
⇒ must split into simpler shapes
- a rectangle of <u>8m by 7m</u>
- a rectangle of <u>2m by 8 m</u>
<u>Now let's find</u>:
- Area of a rectangle of <u>8m by 7m</u>
- Area of a rectangle of <u>2m by 8m</u>
<u>Total Area</u> = 56 + 16 = <u>72 m²</u>
<u>Answer: 72 m²</u>
Hope that helps!
