Write the equation of this line in point-slope form using the point (1,-3) . a. y + 1 = (-1/2)(x + 3)

b. y + 1 = (1/2)(x + 3)

c. y + 3 = (1/2)(x - 1)

d. y - 3 = (-1/2)(x - 1)

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm