Let f be a differentiable function with f(1)=3. The graph of f′, the derivative of f, is shown above. Which of the following statements is true about the line tangent to the graph of f at x=1

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

really your just stupid if you don't know this

step-by-step explanation:

1/8 is left? add a bit more info plz

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.