There are three types of correlation.
1) Positive correlation: Two variables are said to be positively correlated when one variable increase then other variable will also increase or one is decrease then other will also decrease.
2) Negative correlation between two variables means when x is increasing but y is decreasing or vice versa.
3) No correlation: When the is scattred and we won't be able to find any distinct relationship then there will be no relation.
Notice in the first and third graph it has positive slope which means if x is increasing then y is also increasing. So, first and third graph is positively correlated.
Whereas in the second graph if x is increasing then y is decreasing. So, second graph is negatively correlated.
But in the last graph there is no such relationship as the data scattered randomly everywhere in the graph. So, it's shows no correlation.
Answer:
hello :
2x (-21) ^ 7 = 2x( - (21)^7) = -2x (21)^7
Answer:
d. E=H
Step-by-step explanation:
The set E of values of x that satisfy x²-3x=-2 is {1, 2}, which matches set H.
__
You can try them and see.
I would have to go with H. because if the line crosses the y axis than that should be you y interception. but the slope would be different.
Answer:
<h3>X=-3</h3>
Step-by-step explanation:
Isolate x on one side of the equation.
<u><em>DISTRIBUTIVE PROPERTY</em></u>
A(B+C)=AB+AC
A(B-C)=AB-AC
3(4x+4) (First, expand.)
3*4x=12x
3*4=12
12x+12
2(5x+9)-12
2*5x=10x
2*9=18
10x+18
18-12=6
12x+12=10x+6
12x+12-12=10x+6-12 (Subtract 12 from both sides.)
6-12 (Solve.)
12-6=6
12x=10x-6
12x-10x=10x-6-10x (Subtract 10x from both sides.)
12x-10x (Solve.)
12x-10x=2x
2x=-6
2x/2=-6/2 (Then, divide by 2 from both sides.)
-6/2 (Solve.)
-6/2=-3
x=-3
As a result, the final answer is x=-3.