Question

Graph the ordered pairs for y = 2x + 4 using x={−2, 1, 2}

Just give me the ordered pairs, please.

Answer 1

Substitute the given values of x into the function to calculate the needed values of y. Order pairs are in the form (x,y).
x=-2 : y=2(-2)+4=-4+4=0 : (-2,4)
x=1 : y=2(1)+4)=2+4=6 : (1,6)
x=2 : y=2(2)+4=4+4=8: (2,8)