circumference = 2 x PI x radius
42 = 2 x 3.14 x radius
42 = 6.28 x radius
radius = 42 / 6.28 = 6.687
= 6.69 inches
Answer:
y = 5x +26
Step-by-step explanation:
y - y1 = m(x - x1)
y - 6 = 5(x - -4)
y - 6 = 5(x + 4)
y - 6 = 5x +20
y = 5x + 26