Question

use the function rule,y=2x+5,to find the values of y when x=1,2,3 and 4. write the answer as ordered pairs that would be used to graph the function

Answer 1

just substitute

x = 1

\[y = 2 \times 1 + 5\]

so y = 7 and the ordered pair is (1, 7)

repeat the process for x =2 then x = 3 and lastly x = 4

hope it helps