Quadratic function

It is given a quadratic function y = -4x2+5x+c with unknown coefficient c. Determine the smallest integer c for which the graph of f intersects the x-axis at two different points.

Result

c =  0

Solution:

Solution in text c =

Checkout calculation with our calculator of quadratic equations.








Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




To solve this example are needed these knowledge from mathematics:

Looking for help with calculating roots of a quadratic equation?

Next similar examples:

  1. Quadratic function 2
    parabola1 Which of the points belong function f:y= 2x2- 3x + 1 : A(-2, 15) B (3,10) C (1,4)
  2. Expression with powers
    eq222_9 If x-1/x=5, find the value of x4+1/x4
  3. Roots
    parabola Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
  4. Equation
    calculator_2 Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
  5. Combinations
    math_2 From how many elements we can create 990 combinations 2nd class without repeating?
  6. Discriminant
    Quadratic_equation_discriminant Determine the discriminant of the equation: ?
  7. Quadratic inequation
    eq2_8 If 5x + x² > 100, then x is not
  8. Quadratic equation
    parabola_1 Solve quadratic equation: 2x2-58x+396=0
  9. Product
    floring The product of two consecutive odd numbers is 8463. What are this numbers?
  10. Functions f,g
    linear_eq_4 Find g(1) if g(x) = 3x - x2 Find f(5) if f(x) = x + 1/2
  11. Blocks
    cubes3_1 There are 9 interactive basic building blocks of an organization. How many two-blocks combinations are there?
  12. Elimination method
    rovnice_1 Solve system of linear equations by elimination method: 5/2x + 3/5y= 4/15 1/2x + 2/5y= 2/15
  13. Three workshops
    workers_24 There are 2743 people working in three workshops. In the second workshop works 140 people more than in the first and in third works 4.2 times more than the second one. How many people work in each workshop?
  14. Teams
    football_team How many ways can divide 16 players into two teams of 8 member?
  15. Trigonometry
    sinus Is true equality? ?
  16. Reference angle
    anglemeter Find the reference angle of each angle:
  17. Theorem prove
    thales_1 We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?