The amount of pancakes left at the Easter Pancake Breakfast Sale is given by the function S(t) = 300(0.85)t where S(t) stands fo
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Transformations are without the equation already in them but I'll tell you what I know.
So your 5th problem is a reflection.
So the main thing is starting from the left of an equation you read the transformation from a point on the graph.
so for example, the first graph, reflects across the Y axis. What makes this the most is it's all linear. So transformations are like...
2x+2 this is really hard to teach as a linear.
okay picture something like this...
since the - is on the inside this means it reflects across the Y axis
since this is on the outside it reflects across the X axis.
try searching YTfor "understanding transformations" it's slightly confusing and I feel I'm too to teach it properly. It took me forever to understand the first I saw too so don't be discouraged.
So your 5th problem is a reflection.
So the main thing is starting from the left of an equation you read the transformation from a point on the graph.
so for example, the first graph, reflects across the Y axis. What makes this the most is it's all linear. So transformations are like...
2x+2 this is really hard to teach as a linear.
okay picture something like this...
since the - is on the inside this means it reflects across the Y axis
since this is on the outside it reflects across the X axis.
try searching YTfor "understanding transformations" it's slightly confusing and I feel I'm too to teach it properly. It took me forever to understand the first I saw too so don't be discouraged.
A direct variation is a mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other. In other words, a direct variation is where 
.
In answer a,
, so it is a direct variation.
In answer c,
, so it is a direct variation.
In answer d,
, so it is a direct variation,
Only answer b is left, which means the answer must be 'b'.
We also know 'b' is the answer because it cannot be expressed as <span>. Instead, it is expressed as </span>
, which is not the same thing and is therefore not a direct variation.
Hope I helped, and let me know if you have any questions :)
In answer a,
In answer c,
In answer d,
Only answer b is left, which means the answer must be 'b'.
We also know 'b' is the answer because it cannot be expressed as <span>
Hope I helped, and let me know if you have any questions :)