The straight line joining the points (1, -2a),(a, 1) has a gradient of 5, find the value of a

m=y-y1/x-x15=1-(-2a)/a-15=1+2a/a-15(a-1)=1+2a5a-5=1+2a3a=6a=2

TB

Related Maths GCSE answers

All answers ▸

What is 15% of 640?


In a sale, the original price of a bag was reduced by 1/5. The sale price of the bag is £29.40. Work out the original price.


Express x*2 + 10x - 3 in the form (x+p)*2 + q


Make n the subject of the formula: m = 5n - 21