A pair of equations is shown below: y = 7x − 8 y = 5x − 2 Part A: Explain how you will solve the pai

Question

A pair of equations is shown below:

y = 7x − 8
y = 5x − 2

Part A: Explain how you will solve the pair of equations by substitution or elimination. Show all the steps and write the solution.

Part B: If the two equations are graphed, at what point will the lines representing the two equations intersect? Explain your answer

King · Answer

Answer:      Step-by-step explanation:   part a:  substitution  7x - 8 = 5x - 2  2x - 8 = -2  2x = 6  x = 3    y = 7(3) - 8 = 21 - 8 = 13   y = 13  Part b.  (3, 13)

thienthanh · Answer

Answer:   Part A) If would probably be smart to use substitution because y is already solved for, so we can substitute the value of y as a function of x into the other equation.  y=7x-8  y=5x-2    7x-8=5x-2      +8     +8  -----------------  7x=5x+6  -5x  -5x  ----------------  2x=6  /2   /2  -----------  x=3    y=7x-8  y=21-8  y=13    Part B) The lines will intersect at point (3, 13)   Step-by-step explanation:   hope this helps  so sorry if this is wrong   did this for hw

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