What is the midpoint of ab, with endpoints a (3,2) and b (8,14)?
a. (5.5,8)
b. (2.5,11)
c. (0.5, 3)
d. (2.5,6)

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2