Part C Find the values for a and b. Explain or show your reasoning. Answer Part D What is the y-coordinate when x = 0? Explain or show your reasoning. Answer

(a)

and

(b)

Step-by-step explanation:

Given

See attachment

Solving (a): The values of a and b

First, calculate the slope of the line:

Let c = 4 and d = 1

So, we have:

To solve for the value of b, we apply slope formula

Let c = 2 and d = 1

So, we have:

Substitute 2 for m and ;

Multiply both sides by 2

Add 2 to both sides

To solve for the value of a, we apply slope formula

Let c = 3 and d = 1

Substitute 2 for m and ;

Cross Multiply

Open bracket

Add 4 to both sides

Divide both sides by 2

Solving (b): The value of y when x = 0.

This point is represented as:

Apply slope formula

Substitute 2 for m and  

Cross Multiply

Collect Like Terms

Divide both sides by 2

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

45

step-by-step explanation: