Notas
EOG Notes 8th
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Math Notes:
To find the slope, the equation is y2 - y1 then x2 - x1. The difference between y2 and y1 will be the top number. On a graph, find a point and then go up and over (rise then run). Put the rise over the run and boom! Slope found.
In an equation like y = -3x + 7, the slope would be the number with the x behind it so it would be -3.
If the “linear function” has an exponent in either the x or y, it isn’t a linear function. Exponents bad.
If the line on the graph isn’t a straight line, it isn’t linear. ‘Tis nonlinear.
The way you tell if the ordered pairs are function is if they have one x value and one y value. If they have more than one for either it isn’t a function.
If more than one of the ordered pairs in a table has the same x value then it isn’t a function.
Below is a table of rational/perfect squares from 1-25