Answer:
Domain: 5, 6, 7, 8
Range: 0, -2, 10, -3
The relation is a function because each x-value has its own y-value.
Step-by-step explanation:
Domain: Set of all first elements in relation
Range: Set of all second elements in relation
How to determine if the relations is a function:
1. Identify the input values.
2. Identify the output values.
3. If each input value leads to only one output value, classify the relationship as a function.
Answer:
2/3
Step-by-step explanation:
2(y+1) =4(5)y + 1-15
2y+2=20y+1-15-2
18y=12
divide both sides by 18
y=2/3
Answer:
Every point on a horizontal line has the same y-value. Use the y-value of the point to find the equation of the horizontal line.
y=4
It would be A. You can find this out by using SOH CAH TOA,
SOH means sin= opposite/hypotenuse
CAH mean cos= adjacent/hypotenuse
TOA means tangent= opposite/adjacent
You would use CAH since you are trying to find cos∠C
You would have cos∠C=10/26.
26 is the hypotenuse since it is opposite the right angle and is the biggest side.
10 is the adjacent since it is right next to C
You would simplify this down to 5/13 by dividing by 2.
This gives you A.
Answer:
My answer is C
Step-by-step explanation:
I know how to use a graph kind of but I have trouble of calculating and stuff like that.
