Can someone show the answer? need this quick : (

f(1) is 1, just look at the x-value provided in the parenthesis. f(1) means function value at x = 1, and the graph shows that at x = 1, y = 1.

The answer is, "13 units."

You can calculate this by using the distance formula.

d=√(x₂-x₁)²+(y₂-y₁)²

d=√(2-7)²+(5-(-7))²

d=√-5²+12²

d=√25+144

d=√169

d=13

The distance between (7, -7) and (2, 5) is 13 units.