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Remember that the equation of a straight line function is: ax+c. a= change of y/ change of xThe steps to follow are:1- find the gradient of the slope2- replace the equation by values coming from any...
We start by noticing that both the numerator and denominator are expressions which can be factorised into brackets. Starting with the numerator, we multiply the coefficient of x^2 and the constant term to...
Write the 2 equations above each other: 3x-y=23 2x+3y=8First we want to remove the y terms to be able to find out x, so multiply the top equation by 3 9x-3y=69 2x+3y=8Now that we have -3y on the top and -...
1) Expand the brackets: (n-2)2 = (n-2)(n-2) = n2 - 2n - 2n +4 = n2 - 4n + 42) Substitute this into the original expression: n2...
STEP 1) First, substitute 2x-3 into the quadratic equation, replacing y, which works out as x2+(2x-3)2=41STEP 2) Now, expand the bracket, (2x-3)Answered by Hannah N. • Maths tutor4791 Views
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