Math, asked by joseinemeneses70, 14 hours ago

what is vertex form of quadratic function y = x² + 4x - 5​

Answers

Answered by shuklaarpit47
0

Answer:

The vertex form of a quadratic function is f(x) = a(x – h)2 + k, where a, h, and k are constants. of the parabola is at (h, k).

Answered by aaryaniyer24
0

Answer:

Use the form  a x^ 2 + b x + c , to find the values of  a ,  b , and  c .

a = 1 , b = 4 , c = − 5

Consider the vertex form of a parabola.

a ( x + d )^ 2 + e

Substitute the values of  a  and  b  into the formula  d = b/ 2 a .

d = 4/ 2 ( 1 )

Cancel the common factor of  4  and  2 .

d = 2

Find the value of  e  using the formula  e = c − b^ 2/ 4 a .

e = − 9

Substitute the values of  a ,  d , and  e  into the vertex form  a ( x + d )^ 2 + e .

( x + 2 )^ 2 − 9

Set  y  equal to the new right side.  

y= ( x + 2 )^ 2 − 9

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