document.write( "Question 53506: Find the x and y-intercepts of the function: y= x^2 + 4x - 1. I found y=-1 but I can't figure out how to solve for the x-intercept. Please help! \n" ); document.write( "
Algebra.Com's Answer #35743 by mathchemprofessor(65)![]() ![]() You can put this solution on YOUR website! y= x^2 + 4x - 1 \n" ); document.write( "Answer: \n" ); document.write( "If x=0, then y=-1 \n" ); document.write( "If y=0, we get a quadratic equation, \n" ); document.write( "x^2 + 4x - 1=0 \n" ); document.write( "Solve for x, using quadratic formula \n" ); document.write( " x = (-b +- sqrt( b^2-4*a*c ))/(2*a) \n" ); document.write( "You'll get the x intercept. \n" ); document.write( " |