What is the equation of the line that passes through the point (1,5) and has a slope of −1?

Step-by-step explanation:

y - 5 = -(x - 1)

y - 5 = -x + 1

y = -x + 6

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1