Question

Which equation is true for all x- and y- values in the table below?​

Answer 1

Put in 1 for x and which problem gives you 7

the answer is y=7x

Answer 2

Answer:  The correct option is (D) $y=7x.$

Step-by-step explanation:  We are given to select the correct equation that is true for all x and y in the following table :

x      1       2        3       4  

y     7      14       21     28

From the above table of values of x and y, we note the following :

$(1,7)~~~~\Rightarrow 7=7\times 1,\\\\(2,14)~~~\Rightarrow 14=7\times2,\\\\(3,21)~~~~\Rightarrow 21=7\times3,\\\\(4,28)~~~~\Rightarrow 28=7\times4.$

Therefore, we can conclude the following equation :

$y=7\times x\\\\\Rightarrow y=7x.$

Thus, the correct option is (D).