Final answer:
To estimate the value of √28 using linear approximation, we can use a known value that is close to 28. In this case, we can use 25, which is a perfect square.
Step-by-step explanation:
To estimate the value of √28 using linear approximation, we can use a known value that is close to 28. In this case, we can use 25, which is a perfect square. The equation of the linear approximation is:
√28 ≈ √25 + (28 - 25)/(2*√25) = 5 + 3/10 = 5.3
Therefore, the estimated value of √28 using linear approximation is approximately 5.3.