Math Problem??
Can someone tell me how to graph this equation?
y = -x sqd. + 4x + 3 for all values of x from x = -1 to x = 5
and the graph
y = x sqd. -2x - 4 using all integral valuses of x, such that -2 is greater than or equal to x which is less than or equal to 4
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The easiest way to figure out how to graph these is by using a graphing calculator and just cutting off the part of the parabolas according to the given limits.
I could explain how to graph it, but it would take too long.
x= -1 0 1 2 3 4 5
y= 8 3 6 11 16 23 32
y
|8
|7
|6 .
|5
|4
|3
|2
_______________ |1________________
-8 -7 -6 -5 -4 -3 -2 -1|0 1 2 3 4 5 6 7 8 x
|1
|2
|3
|4
|5
|6
|7
|8
The numbers and lines on the left should be in line with the middle. Its hard to show on a computer.
Then keep plotting the co ordinates on the graph x on x axis and y on y axis.