Hmm a number as. a decimal is 1/2=0.50
3x+2=x+6
subtract x from both sides,subtract 2 from both sides, gives you 2x=4,then divide by 2 on both sides and x will equal 2. Input the 2 for x and see if it will graph in a straight line on a graph.
If a vertical line crosses the relation on the graph only once in all locations, the relation is <span>a </span>function. If<span> a vertical line crosses the relation more than once, the relation is </span>not a function<span>. So number 18 is not a function but number 19 is a function.
Hope this helps!!</span>
