SOLUTION: Make a graph of y=-x^2-2x+3 and find the vertex, y-intercept, extra points. I don't understand how I can find the vertex, y-intercept and extra points.

Question 437257: Make a graph of y=-x^2-2x+3 and find the vertex, y-intercept, extra points.
I don't understand how I can find the vertex, y-intercept and extra points.

Found 2 solutions by Alan3354, Gogonati:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
duplicate

Answer by Gogonati(855) (Show Source): You can put this solution on YOUR website!

This graph represent a parabola:
From the final expression we see that the vertex is: (-1, 4)
To find the y-intercept we make x=0: y=-0^2-2*0+3=3; (0, 3)
Other extra points are the x-intercepts: -x^2-2x+3=(x+3)(x-1)=0: x=-3 and x=1;
x-intercepts are:(-3, 0) and (1, 0).
Done.
RELATED QUESTIONS
Make a graph of y=6x^2-4x-3 and find the vertex, y-intercept, extra points. I don't... (answered by mananth,Alan3354)
Graphing Quadratics - Algebra 2 y= x^2-2x+2 i need to find out: Axis of symmetry:... (answered by richwmiller)
i NEED TO FIND THE X AND Y INTERCEPT AND THE VERTEX OF... (answered by Fombitz)
Sketch the graph the parabola. Find the coordinates of the vertex. y=-x^(2)+2x-3 The... (answered by stanbon)
How would I find the x and y-intercept and vertex of: H(x)=3x-1/2x^2 Thank... (answered by macston)
how can i find the x-intercepts of the parabola with vertex (-1,2) and... (answered by solver91311)
Hello I am graphing the vertex and axis of symmetry and I understand how to find it, but... (answered by greenestamps,MathLover1)
find the axis of symmetry,vertex,y-intercept,and then graph... (answered by TimothyLamb)
I have to indentify the following components of each quadratic function then graph the... (answered by ankor@dixie-net.com)