math,help

posted by .

i need help with this one i've tried it many ways and still can't figure it out because it has the lines going between two solid lines.

find the x-intercepts.
y = x^2 +5x+2

x intercepts is when y is zero.

0=x^2 +5x+2

using formula

5/2 +- 1/2 sqrt (25-8)

that is the answer. I don't know what you mean by lines going between..
This graph is parabola, not a line. However, you don't need to graph it at all, just use the solution above.

so then my answer would be

(5+-sqrt(17))/2,0)and (0,5+-sqrt(17))/(2)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    what's the quadratic form of 1/4(x+3)^2-4 I need it to find the intercepts of the parabola it describes. Check: I think the parabola is 1/4 scaled, moved 3 to the left and down 4 compared to a y=x^2 parabola. Is this ok?
  2. Math

    How would I figure this problem out? "To rotate a figure 150 degrees you could reflect the figure over two lines. What would the acute angle between the two lines have to be?
  3. math

    when 2 lines intersect and form an acute angle A and both lines have a positive x-intercepts but the y-intercepts are on opposite sides of the origin. How would you write an equation showing the relationship between A and the angles …
  4. Algebra I

    Did I do these probelms correctly? Find the intercepts 1. y^2 = x^2 - 4x y^2 = x(x - 4) Y intercepts y^2 = 0(0 - 4) (0,0) x intercepts 0 = x(x - 4) 0 = x - 4 4 = x (4,0) 2. y = (x (x + 3))/(3x + 1)^2 y intercetps y = (0(0 + 3))/(3(0)
  5. physics

    In a diagram of electric field lines, q1 has 9 lines going into it and q2 has 27 lines going out of it. If one of the charges is -40 mC, which of the following could be the other one?
  6. algebra

    Can someone check my answers on exploring conic sections?
  7. algebra

    Can someone check my answers please and if Im wrong please explain. 1) graph 4x^2+4y^2=64. what are the domain and range?
  8. Math - PreCalc (12th Grade)

    Which statement is true for any linear system of two equations in two variables?
  9. algebra

    Find the x-intercepts and y-intercepts for f(x) f(x)=x^2-4x + 1 I have been trying to figure this one out for hours and I find no solution but there has to be a way to figure this out and I can't. Please help!! Thank you
  10. Algebra

    I am graphing y=10+4x and y=6+6x. One question that is stumping me is why don't the lines start at an origin. Is it because there isn't a negative?

More Similar Questions