Line A has equation y = 5x-4. Line B has equation 3x+2y = 18. (a) Find the gradient of (i) line A, (ii) line B. (b) Write down the co-ordinates of the point where line A crosses the x-axis. (c) Work out the co-ordinates of the point of intersection of line A and line B. (d) Work out the area enclosed by line A, line B and the y-axis.
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Find the Equation of a Line Given That You Know Two Points it Passes Through. The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept.
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