HRS - Ask. Learn. Share Knowledge. Logo

In Mathematics / Middle School | 2014-04-02

Use the function rule, \( y = 2x + 5 \), to find the values of \( y \) when \( x = 1, 2, 3, 4 \). Write the answers as ordered pairs that would be used to graph the function. Show your work.

1. For \( x = 1 \):
\[
y = 2(1) + 5 = 2 + 5 = 7
\]
Ordered pair: \((1, 7)\)

2. For \( x = 2 \):
\[
y = 2(2) + 5 = 4 + 5 = 9
\]
Ordered pair: \((2, 9)\)

3. For \( x = 3 \):
\[
y = 2(3) + 5 = 6 + 5 = 11
\]
Ordered pair: \((3, 11)\)

4. For \( x = 4 \):
\[
y = 2(4) + 5 = 8 + 5 = 13
\]
Ordered pair: \((4, 13)\)

Asked by bakeemmal

Answer (3)

y=2(1)+5,,, y=2+5 then y=7 (1,7).....y=2(2)+5,,,y=4+5 then y=9 (2,9) .....y=2(3)+5,,, y=6+5 then y=11 (3,11)........ y=2(4)+5,,,,y=8+5 then y=13 (4,13) when solving for the y you just have to substitute the values of the x given one by one ..... for the ordered pairs -.... ex. in first equation the given value of x is 1..... so we know that is the value of x and by substituting you can find the value of y which turned to be 7 ,,, to write it (1,7) 1 is the x and 7 is the y ((x,y)

Answered by carranzajoanne | 2024-06-10

that man is correct ;

Answered by latrelldavis7 | 2024-06-14

We calculated the values of y using the function y = 2 x + 5 for x = 1 , 2 , 3 , 4 . The ordered pairs obtained are ( 1 , 7 ) , ( 2 , 9 ) , ( 3 , 11 ) , ( 4 , 13 ) . These pairs can be graphed to represent the function visually.
;

Answered by carranzajoanne | 2024-12-23