warm up i can find x- and y-intercepts given an equation
Post on 04-Jan-2016
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Warm Up
I can find x- and y-intercepts given anequation
1. Rewrite in vertex form:
2. Identify the transformation:
a) b) 3. Without graphing, find the x- and y-
intercepts:
Finding x- and y-intercepts• By definition, the x-intercept occurs when and
the y-intercept occurs when • Given a function, – to find the x-intercept(s) plug in 0 for y and solve
for x– to find the y-intercept(s) plug in 0 for x and solve
for y
Finding x- and y-intercepts• Why do we care?• Using what we know about transformations,
the x-intercept and the y-intercept we can sketch a careful graph of any equation without using a graphing calculator
• Go back and graph the three functions that we have worked on today
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