Need help with graphing!!
For each function, determine the domain and range, intercepts,
positive/negative intervals, and increasing/decreasing intervals. State
the equation of the reciprocal function. Then sketch the graphs of the
original and reciprocal functions on the same axes.
f(x)= x^2-x-12

Question

Need help with graphing!!
For each function, determine the domain and range, intercepts,
positive/negative intervals, and increasing/decreasing intervals. State
the equation of the reciprocal function. Then sketch the graphs of the
original and reciprocal functions on the same axes.
f(x)= x^2-x-12

anonymous · Answer

any time your polynomial degree is 2 it looks like a variation of this |dw:1428205947812:dw|

anonymous · Answer

to find x intercepts you can factor it

anonymous · Answer

based on the graph. x's will go on forever and y's will go on forever

bee_see · Answer

The domain is all real numbers. For range, check the y-axis. Where does it start and at which direction is the parabola going? Is it pointing to values less than or equal to the starting point?

bee_see · Answer

For y-intercept, x=o. For x-intercept, factor the quadratic function...like this: |dw:1428206473426:dw|