will fan and medal......The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?
{2, 4}
{-2, -4}
{12, 14}
{-12, -14}
{0, 5}

Question

will fan and medal......The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?
{2, 4}
{-2, -4}
{12, 14}
{-12, -14}
{0, 5}

fluffynose · Answer

the range is the y value 
we can rewrite the given function f(x)=x+5 to y=x+5
and our given range are y=7 and y=9
so sub in ur y values into the equation to find the x value which are the domain...
y=x+5

jjcoolja12 · Answer

Let's solve for x.
y=x+5
Step 1: Flip the equation.
x+5=y
Step 2: Add -5 to both sides.
x+5+−5=y+−5
x=y−5
Answer:
x=y−5
so its really x=y-5

er.mohd.amir · Answer

here range is value of f(x) and domain is value of x so find value of x for given f(x).

shaik0124 · Answer

{2,4}

anonymous · Answer

id say 2,4 tbh

jameshorton · Answer

f(x) = 1/4x + 3 when the range is {3, -17, 27}?
x = 0, -80, 120
Domain: {0,80,120} 
f(x) = -3x - 5 when the range is {-2, 0, 3}?
x = -1, -5/3, -8/3