Without graphing, find the slope of the line that goes through (0,5) and (8,2).

(2,-1) and (6,1).

(-3,-2) and (-1,-5).

Think of it as five or above give it a shove. change the 5 or above to the right to a zero and add one to the number on the left.

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.

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