Use the vertical line test to determine whether the relation is a function. {(4,0)(4,-5)(4,-2)(2,-4)}

Vertical line test says if you can draw a vertical line on a graph of a function and hit 2 or more points at once, it's not a function
you can see if you draw a line at x=4, you hit 3 points at once (and 3>2)
so it's not a function

Step 1: 6x-10=1; step 2: 6x=11

The decimal expansion would be .27 repeated