Question 23046: I am given a problem and I must use a t-chart and pick any number for x, and solving it for y. Then I must graph it. I am given the problem y=3xsquared. I have chosen to use the numbers (-2,-1,0,1,2) for X. Can you help me solve for y and graph it. I am unsure if you multiply 3 time x and then square it, or square x and then multiply that times 3
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! By order of operations agreement, you always raise to the power before you multiply!! So square the values of x, then multiply by 3, and that will give you the y values:
x=-2, y = 3*(-2)^2 = 3*4 = 12
x=-1, y = 3*(-1)^2 = 3*1 = 3
x= 0, y = 3*(0)^2 = 3*0 = 0
x= 1, y = 3*(1)^2 = 3*1 = 3
x= 2, y = 3*( 2)^2 = 3*4 = 12
If you graph these points it should look like this:
R^2 at SCC
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