Work out the gradient and y-intercept of the straight line with points A(3,8) and B(-2,-7)
Y= mx + cFinding m : change in y/ change in x => (8--7)/(3--2) = 3Finding c : input a pair of coordinates => 8 = (3 x 3) + c .... c = -1y = 3x -1
KR
Related Maths GCSE answers
All answers ▸Factorize x³-x
A graph is sketched with the equation x^2+4x-5. Find the minimum point of this graph.
Solve 3x2 + 7x – 13 = 0 Give your solutions correct to 2 decimal places.
Claire drove from Manchester to London, it took her 4 hours at an average speed of 85 km/h. Matt drove from Manchester to London, it took him 5 hours. Assuming he took the same route as Claire and took no breaks, work out his average speed in km/h.