y = x + 2
if x = -3 then y = -3 + 2 = -1 so it's (-3,-1)
if y = x + 2 reflected across x-axis then x will stay the same but y is opposite
rule: reflected over x-axis (x,y) --->(x, -y)
so (-3,-1) will be ((-3,1)
answer
y = 1 when x = -3 reflected across x-axis