Use the function rule, y = 2x + 5, to find the values of y when x = 1, 2, 3, and 4. Write the answers as ordered pairs that would be used to graph the function.
@so Damon... (3,11) is the ordered pair you would use to graph the function
well I will do one of them
If x = 3
the answer will be ( 3 , something )
y = 2 (3) + 5
y = 6 + 5
y = 11
so
( 3 , 11 )
what does (3,11) represent and why is it there?
To find the values of y when x = 1, 2, 3, and 4 using the function rule y = 2x + 5, we substitute the given x-values into the equation and solve for y.
Let's start with x = 1:
y = 2(1) + 5 (Replace x with 1)
y = 2 + 5 (Simplify)
y = 7
So, when x = 1, y = 7. The ordered pair would be (1, 7).
Next, let's find the value when x = 2:
y = 2(2) + 5 (Replace x with 2)
y = 4 + 5 (Simplify)
y = 9
So, when x = 2, y = 9. The ordered pair would be (2, 9).
Now, let's calculate the value when x = 3:
y = 2(3) + 5 (Replace x with 3)
y = 6 + 5 (Simplify)
y = 11
So, when x = 3, y = 11. The ordered pair would be (3, 11).
Lastly, let's determine the value when x = 4:
y = 2(4) + 5 (Replace x with 4)
y = 8 + 5 (Simplify)
y = 13
So, when x = 4, y = 13. The ordered pair would be (4, 13).
The ordered pairs we found are: (1, 7), (2, 9), (3, 11), and (4, 13).