Cool Down
The equations and both define the same quadratic function.
Without graphing, identify the -intercepts of the graph. Explain how you know.
Compare your answer:
,; The constants in the factors of an equation in factored form give a clue about where the -intercepts are when the equation is graphed. In the equation , the -intercepts are and .
Without graphing, identify the -value of the -intercept of the graph. Be prepared to show your reasoning.
Compare your answer:
8; The -intercepts of the graph can be seen when the equation is in standard form. The -coordinate is the number without the variable. In the equation , it is the 8 so the -intercept is .