Hi.
The first question is a direct variation — specifically y = 1.8x
In the second one (if my calculations are correct), it's not a direction variation.
Hope this helps :)
Calculations:
y = 1.8(3) = 5.4
y does not equal x, 2x, or -2x.
Double angle identity for sine:
Factorize the left side.
Pythagorean identity:
so that
Answer:
She must attend 6 or more classes in order to be in the recital
Step-by-step explanation:
must attend > .15(40)
must attend > 6
The vertical line test is when you put vertical lines down the graph and if the point does not touch the line more than once, it passes and represents a function.
3/7, 3/5, 1/2 is the answer it starts from the lowest to the lagest
