A quadratic function is given.

Algebra
Tutor: None Selected Time limit: 1 Day

f(x) = 4x2 − 40x + 107
(b) Find its vertex and its x- and y-intercept(s). (If an answer does not exist, enter DNE.) 
vertex    (xy) =
  
x-intercept    (xy) =
  
y-intercept    (xy) =
  


Mar 4th, 2015

Answer:

here I can write:

so:

the x-intercepts are y=0---> (x-5)^2 = -7/4 ---> they don't exist

the y-intercept, is: x=0 ---> y = 107

the vertex is:

V = (5, 7)

Mar 4th, 2015

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