The graph of a function never has two different points with he same x-coordinate because

Find the vertex of the function given below y=x^2-6x+1

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"