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Find the inverse of: f(x) = (2x + 3)/(x - 4)

To find the inverse of a function, f -1 (x):1) set f(x) as y: y = (2x + 3)/(x - 4)2) swap x and y: x = (2y + 3)/(y -4)3) solve the new equation for y: x(y -4) = 2y + 3 = xy -4x2y - xy = -4x - 3y(2 - x) = -4x...
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Answered by Sophie I. • Maths tutor
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Conjugate 'hacer' in the preterite tense

Even though hacer is an -er verb, it is irregular in the preterite tense and therefore must be wrote learned. It is conjugated as follows: Yo - hiceTu - hicisteEl/Ella/Usted - hizoNosotros - hicimosVosotros ...
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Answered by Sophie I. • Spanish tutor
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"Stalin's five-year plans were a great success in the years 1928-1941." To what extent do you agree with this statement?

Stalin's Five Year Plans were set in order to bring Russia to the forefront of the power play in Europe. These plans served as a new economic policy, following a "communism from above" method, dism...
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Answered by Catalina G. • History tutor
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How to write a good paragraph

Each paragraph should have a key point, which you should express at the beginning of your paragraph. Next you need to have evidence of this point, this is found through quotations in the text. You then need ...
AF
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What is the difference between the imperfect and the preterite tense in the past indicative?

Whilst both the preterite and the imperfect express actions that have happened in the past, their uses vary significantly.The preterite is used to describe actions that have happened one time, a closed and c...
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Answered by Abbie F. • Spanish tutor
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