Answer:
y = -3x
Step-by-step explanation:
It is easiest to try the answers for x=1.
a) y = 1/-3 = -1/3 ≠ -3
b) y = 1 ≠-3
c) y = 3(1) = 3 ≠ -3
d) y = -3(1) = -3 . . . . . this rule matches the table
Answer:
Step-by-step explanation:
The slope would be rise 2 over 1
In this question, the thing that needs to be found is the number whose 20% would be 18. The information's required for getting to the solution are already provided in the question. based on those given information's, the answer can be deduced very easily.
Let us assume the unknown number to be = x
Then
(20/100) * x = 18
x/5 = 18
x = 18 * 5
= 90
so the unknown number in the question is 90. I hope the procedure is clear enough for you to understand.
Answer:
Step-by-step explanation:
Example Equation of an ellipse with horizontal major axis with center at (0,0):
x%5E2%2Fa%5E2%2By%5E2%2Fb%5E2=1
For given problem:
b=20
b^2=400
a=30
a^2=900
equation: x%5E2%2F900%2By%5E2%2F400=1
y%5E2%2F400=1-x%5E2%2F900
