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[Music] question 22 b the diagram below shows a sketch of a graph which meets the x-axis at t negative 4 and 2. so this is a the graph were talking about its meeting the x-axis that is negative 4 and 2. find the equation of the graph so when trying to find the equation of the graph here we look at where this graph is meeting the x-axis here it say x is equal to negative 4. so we write x is equal to negative four and which other x is equal to two so x is equal to two so put o so if you remember nicely on how to solve the quadratic equation you find that these are the two solutions you find okay they said its meeting the graph at a negative row a negative four and d two so once you docHub this point you can you equate this you go to zero so meaning we group the like terms these four across the equal sign it will be positive even these two will cross it will be negative 2 is equal to 0 so if you remember the way you solve quadratic equation uh this is a reverse youre starting with the