Given f(x)=x^2+12x+26 . enter the quadratic function in vertex form in the box. f(x)=

f(x)=x^2+12x+26

Vertex form of f(x) = a(x-h)^2 +k

We change f(x) into vertex form using completing the square method

We take half of square of middle term

middle term is 12

Half of square of 12 is then 6^2 = 36

Add and subtract 36 to complete the square

The vertex form

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.