A is the point with coordinates (5, 9) B is the point with coordinates (d, 15). The gradient of the line AB is 3. Work out the value of d.
gradient is calculated using the change in y coordinates divided by change in x coordinates. so, (15-9)/(d-5)=3 => 6/(d-5)= 3rearrange this equation to get d on one side (6/3)+5 = d therefore d= 7
EC
Related Maths GCSE answers
All answers ▸Jules buys a washing machine. 20% VAT is added to the price of the washing machine. Jules then has to pay a total of £600 What is the price of the washing machine with no VAT added?
What is the method to solve an equation of type : ax^2+bx+c = 0 ?
Given that f(x ) = 4x^3 + 12, evaluate f ( −2) .
Solve x^2 + x -12= 0 for all values of x.