Question

y=-3x^2-2x+1 Graph parabola,give its vertex,x and y intercept. Can someone help me solve this

Answer 1

x interecept, set y=0, solve for x.
y -intercept , set x =0 and solve for y.

Answer 2

well the vertex can be found using

x = -b/2a which gives the line of symmetry for the parabola...
and the vertex lies on the line of symmetry

so in your question b = -2 and a = -3

so the line of symmetry is

x = - 2/6 or x = -1/3

substitute this x value for find the corresponding y value..

when you'll have the vertex..

the y intercept is the easiest... set x = 0 and solve for y...

the x- intercepts set y = 0 and solve for x

and the quadratic will factor... or you can use the general quadratic formula to find the x intercepts.

hope it helps..