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Worksheet: Solution of a Linear Equation by Graphing

Q1:

Let’s consider the equation 4 π‘₯ + 7 = 1 1 .

David says that to solve this equation graphically, one has to graph the function 𝑦 = 4 π‘₯ βˆ’ 4 . Isabella says that she can solve it graphically without rearranging the equation in the form π‘Ž π‘₯ + 𝑏 = 0 but by graphing the function 𝑦 = 4 π‘₯ + 7 . Who is correct?

  • AOnly Isabella
  • BOnly David
  • CNeither of them are correct.
  • DBoth of them are correct.

Without doing any calculation, solve the equation graphically.

  • A π‘₯ = 1
  • B π‘₯ = βˆ’ 4
  • C π‘₯ = βˆ’ 1
  • D π‘₯ = 4
  • E π‘₯ = 2