### Home > CCA > Chapter 9 > Lesson 9.2.1 > Problem9-55

9-55.

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

$\text{Quadratic Formula} =\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

1.  $y=x^2−5x+3$

$x\approx0.7$ or $4.3$

1.  $y=x^2+2x−6$

See part (a).