What is the equation of the straight line, which passes through the point (0,-7) and has a gradient of 4, in the form \(y = mx + c\).
\[y = 4x + 7\]
\[y = - 7x + 4\]
\[y = 4x - 7\]
Find the equation of the line passing through the points C(0,-1) and D(2,3).
\[y = 2x - 1\]
\[y = 4x - 1\]
\[y = 2x + 3\]
Find the gradient of the straight line with equation \(4y - 8x - 1 = 0\).
-8
2
-2
Calculate the gradient of the straight line which passes through the points P(-1,1) and Q(5,13).
3
4
Find the equation of the straight line parallel to \(2y = 3x - 7\) and passing through (0.5, -1).
\[y = 3x - 2.5\]
\[y = \frac{3}{2}x - \frac{7}{4}\]
\[2y = 3x - 7\]