Answer:-
To find the ???? x-intercepts of a quadratic function, set the function equal to zero. For a quadratic in standard form ???? = ???? ???? 2 + ???? ???? + ???? y=ax 2 +bx+c, solve ???? ???? 2 + ???? ???? + ???? = 0 ax 2 +bx+c=0. Use the quadratic formula ???? = − ???? ± ???? 2 − 4 ???? ???? 2 ???? x= 2a −b± b 2 −4ac ? ? to find the ???? x-values where the graph crosses the ???? x-axis. These ???? x-values are the ???? x-intercepts. If the discriminant ( ???? 2 − 4 ???? ???? b 2 −4ac) is positive, you'll get two intercepts; if it's zero, one intercept; and if negative, no real ???? x-intercepts. Substitute back to confirm the solutions satisfy the equation.
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