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sequenses, graphs, rules and patterns

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
how do you find an equation of a line in a graph?   1st:find the gradient2nd:find the y intercept3rd:place the info into a formula.  
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How do you find the gradient and the y-intercept from this rule:y=5x-2   5=gradient-2=y-intercept  
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what is a gradient?   how steep a line on a graph is.  
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what is a y-intercept?   where the graph line goes through the y axes  
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Which way does a negative graph line point?   It points to the left  
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If we had a graph point that was (4,5) which would be the y term and which would be the x term?   4=x5=y  
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If we had a table like this: x 1 2 3 4 y 10 13 16 19what would be the rule?   y=3x+7  
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