find the equation of a straight lines, making the y- intercept of 7 and angle between the line and the y-axis is 30°
Answers
Answer:
A good soil structure is important to allow air and water into the soil which are vital for healthy plant growth. It will improve drainage and reduce soil erosion caused by excess surface run-off. Without structure, soils will suffer from anaerobism, waterlogging and nutrient lock-up and, ultimately, plants will die!
Answer:
these are two straight lines making 30° with the y-axis
from the attachment,it is clear that the two lines make the angles 60° and 120° with the x-axis
$$\begin{lgathered}let \: m1 \: be \: tan60° = \sqrt{3} \: and \\ m2 \: be \: tan120° = tan(180° - 60°) \\ = - tan60° = - \sqrt{3 } \\ m1 = \sqrt{3},m2 = - \sqrt{3 } \: and \: b =7 \\ \\ equations \: of \: lines \: are \: y = m1x + b \\ and \: y = m2x + b \\ y = \sqrt{3} x + 7 \: and \: y = - \sqrt{3} x + 7\end{lgathered}$$
HOPE IT HELPS YOU ❤️