Apair of equations is shown below:

y = 8x − 9
y = 4x − 1

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)

Part A: To solve this problem, I used substitution.

y = 8x - 9

y = 4x - 1

8x - 9 = 4x - 1

First, I will add 9 to both sides to eliminate it from the left side.  The constant on the left side of the equation became 8.

8x - 9 + 9 = 4x - 1 + 9

8x = 4x + 8

I will subtract 4x from both sides of the equation.

4x = 8

I will divide both sides by 4 to isolate the variable.

4x/4 = 8/4

x = 2

In this system of equations, x is equal to 2.  I will plug it into the equations to solve for y.

y = 8(2) - 9

y = 4(2) - 1

y = 16 - 9

y = 8 - 1

y = 7

y = 7

In this system of equations, y is equal to 7.  The solution for this system of equations is (2, 7).

Part B: In a system of equations, the ordered pair that satisfies both of the equations is the point of intersection.  (2, 7) is the point of intersection for this system of equations.

the answer is: the length is 5/6 yards.

give me a or a 5 star rating if this is correct!

step-by-step explanation:

answer: i literally just answered this question but they want me to do it again

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