How do you graph #3x ^ { 2} + 6x - y + 7= 0#?

1 Answer
Roy Ø.
May 30, 2018

graph{3x^2+6x+7=y [-74.04, 74.1, -37.04, 37.04]}

Explanation:

We would rewrite the function so that y is on the left and the rest is on the right:
#y=3x^2+6x+7#

Then we can plot it, either with a graph program like Geogebra or by calculating a table with x and y values and then plot it on a graph paper.
#x=-2, y=3*(-2)^2+6(-2)+7=7#
#x=-1, y=3*(-1)^2+6(-1)+7=4#
#x=0, y=7#
#x=1, y=3*(1)^2+6(1)+7=16#

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