exam Maths Puzzle Numerical Ability

please help. solve by substitution: y=2x
x-y=4

Read Solution (Total 0)

exam Other Question

Hello I have posted this before but no reply could someone please help!
Describe and explain how you could use the graph of f (x) = 2^x to obtain a decimal approximation for (the square root of 2) . and this problem also. Thank you so much..

f(x)=2x^2-8x+3
What is the vertex