Answer: y=4, x=-2
Step-by-step explanation:
line r must have the equation y=4 to go through point (-2,4)
line s must have the equation x=-2 to go through point (-2,4)
7. Radius =15 diameter=30 area=15^2pie circumference=30
8. Radius=8 diameter=16 area=8^2pie
Circumference=16
9. Radius=10 diameter=20 area=10^2pie
Circumference=20
Answer:
8t^3-36t^2+54t-27
Step-by-step explanation:
(2t-3)^3
(2t-3)(2t-3)(2t-3)
Multiply the first two terms
(4t^2 -6t -6t+9)(2t-3)
Combine like terms
( 4t^2 -12t +9) ( 2t-3)
Multiply
2t*( 4t^2 -12t +9) -3 ( 4t^2 -12t +9)
Distribute
8t^3 -24t^2 +18t-12t^2 +36t-27
Combine like terms
8t^3-36t^2+54t-27
The problem is -18-3 is not -15 it is -21
Answer: B) It is a relation and is NOT a function
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Explanation:
We don't have a function because it is possible to draw a single straight vertical line through more than one point on the curve. This graph is said to fail the vertical line test. A function is only possible if any x input leads to exactly one y output, but that's not the case here (eg: x = 0 leads to three different y values). So there are many approaches to see why we don't have a function.
It is a relation however because any relation is simply a collection of (x,y) points; often this collection forms some sort of rule or pattern though it's not mandatory. A graph is a visual way to represent (x,y) points. Some graphs are connected (continuous) with a curve, or other graphs are a set of discrete points, or they may be a mix of both varieties.