F(x)= -3x+7; reflection in the x-axis

The reflection of the point (x,y) across the x-axis is the point (x,-y) → (x, -f(x)).

Therefore

f(x) = -3x + 7 → -f(x) = -(-3x + 7) = 3x - 7

answer: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

step-by-step explanation: if you weigh 60 pounds on earth, on the moon you will weigh about 10 pounds. if you weigh 120 pounds on earth, you will weigh about 20 pounds on the moon. since weight is caused by the mass of two objects that are near each other, the bigger the objects, the more the force of gravity.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify