Question 866854
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Hi
f(x)= 4 is an horizontal line (3, 4), (4,4),(0,4),(-3,4) etc: Pts on this Line
function?  Yes (vertical line test satisfied)
domain is (&#8722;&#8734;, &#8734; )  Range is [4]
{{{drawing(300,300,   -6, 6, -6, 6, grid(1), 
graph( 300, 300, -6, 6, -6, 6,0,4) )}}}