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Home > INT2 > Chapter 5 > Lesson 5.2.6 > Problem 5-134

5-134.

For each parabola graphed below, visually estimate the -intercepts. Then use the Quadratic Formula to confirm your estimates.  

Quadratic Formula:  

  1.  

    An upward parabola with vertex in fourth quadrant, The parabola crosses the x axis between 0 and 1 and between 4 and 5.

     or 

  1.  

    An upward parabola with vertex in third quadrant, The parabola crosses the x axis between negative 4 and negative 3 and between 1 and 2.

    See part (a).

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