The y-intercept of a parabola is 1, and its vertex is at (1,0). what function does the graph represent

f(x) = (x − 1)2

Step-by-step explanation:

  Equation of function,   y = (x-1)²

Step-by-step explanation:

The general formula of a parabola symmetric about x - axis is given by (x-h)²=4a(y-k), where (h,k) is the vertex.

Here (h, k) = (1,0)

So, we have (x-1)²=4a(y-0)

                    (x-1)²=4ay

One point on the parabola is (0,1) since y intercept is 1.

Substituting

         (0-1)²=4 x a x 1

           1 = 4 a

Equation of parabola,

Equation of function,   y = (x-1)²

a

step-by-step explanation:

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752