ALGEBRA 1
posted by DANIELLE .
Please check for me.Without drawing the graph of the given equation determine
(a)how many xintercepts the parabola has
(b)whether it vertex lies above, below or on the axis.
1. y=x^25x+6
I use the determinant
sqrt b^2 4ac
(5)^24(1)(6))=1
There are two real numbers
The parabola has two X intercepets
The parabola opens downward and its vertex lies above the axis.
2.Y=X^2+2X1
(2)^24(1)(1)=0
There is one real number
one xintercept
The parabola opens upward and its vertex lies on the axis.
Thanks Much!!!
119
Respond to this Question
Similar Questions

algebra
y=2x^2+5x3 a)determine the xintercepts b)determine the vertex c)determine the axis of symmetry d)determine the maximum or minimum value, stating whether it is a maximum or a minimum e)determine the range can i get the equations so … 
math help,algebra
Okay this is what i have to do but i think i am doing something wrong. directions are: Identify the axis of symmetry, create a suitable table of values, and sketch the graph (including the axis of symmetry). The problem is: y = x^2+6x2 … 
Algebra,Math, graphs help
This is what the directions state to do: (A) Complete the table,(B)describe the resulting graphs by identifying the vertex point, (c) the graph’s direction, (d) and any axis intercepts gleaned from the table or graph. Problem #1 … 
math, algebra,graphs help
THe directions state: (A)Complete the table, (B) describe the resulting graphs by identifying the vertex point, (C)the graph’s direction, (D) and any axis intercepts gleaned from the table or graph Problem #3 Equation : y = 2x^2 … 
ALGEBRA 1
Please check for me.Without drawing the graph of the given equation determine (a)how many xintercepts the parabola has (b)whether it vertex lies above, below or on the axis. 1. y=x^25x+6 I use the determinant sqrt b^2 4ac (5)^24(1)(6))=1 … 
Algebra
Find the vertex of the functions given below. 1. y=(x4)(x+2) 2. y=2x^24x+1 The midpoint of the xintercepts of a parabola has the same x value as the vertex. the xintercepts are obviously x=4 and x=2 so the x value of the vertex … 
algebra II
Can you please help me with the these problems. 8.Write an equation in standard form of the parabola that has the same shape as the graph of f(x) = 11x^2, but which has its vertex at (2, 9). 10. Use the vertex and intercepts to sketch … 
Algebra help!
I don't understand my problems that I am suppose to do. please help. Write the equation of a polynomial function with the given characteristics. Use a leading coefficient of 1 or 1 and make the degree of the function as small as possible. … 
algebra
Which of the following best describe the graph of a quadratic equation with one real root? 
Algebra 2
Point (6,2) lies on a parabola that has its vertex at (0,1). Write the equation of the parabola. Indicate whether the graph opens up or down.