weakmill9 weakmill9
  • 24-06-2016
  • Mathematics
contestada

The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?
A.{2, 4}
B.{-2, -4}
C.{12, 14}
D.{-12, -14}
E.{0, 5}

Respuesta :

Mehek
Mehek Mehek
  • 24-06-2016
range = y values

domain = x values

Plug 7 for y

7 = x + 5

Solve for x

2 = x

Plug 9 for y

9 = x + 5

Solve for x

4 = x

Domain {2, 4}

Answer Link

Otras preguntas

list the three qualifcations required for a person to b classified as unemployed
Round 52961 to one significant figure
If all the sides of a prism are multiplied by 8, by what factor does the volume increase?
Simplify. 22÷(9+2) Need help
please help me i really don't know this answer and thank you for all your hard work
What direction would a parabola be facing if the equation has x squared?
Guys help me out on this one plizzz
$8,000 is invested in two different accounts earning 3% and 4% interest. If the two accounts earn a total of $295 in interest, how much money was invested at 3%
A map is drawn using a scale of 1 cm/80 mi. Two cities are 280miles apart. How far apart are the cities on the map
Which number produces an irrational number when multiplied by 0.4?