Apair 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. (5 points) part b: if the two equations are graphed, at what point will the lines representing the two equations intersect? explain your answer. (5 points)

Step-by-step explanation:

If a solution exists, the (x,y) coordinates will be equal, so we can say y=y:

7x-8=5x-2  add 8 to both sides

7x=5x+6  subtract 5x from both sides

2x=6  divide both sides by 2

x=3, now substitute this value for x into either original equation to solve for y

y=5x-2 becomes:

y=5(3)-2

y=15-2

y=13

So the solution to the system of equations is the point:

(3, 13)

step-by-step explanation:

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80