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victoriay3
30.01.2021 •
Mathematics
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
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Ответ:
(a)
(b)![x = 1](/tpl/images/1079/8178/26584.png)
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
; ![(x_2,y_2) = (4,b)](/tpl/images/1079/8178/7a8e7.png)
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
; ![(x_3,y_3) = (a,8)](/tpl/images/1079/8178/73d9c.png)
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:![(x_5,y_5) = (x,0)](/tpl/images/1079/8178/6fcf7.png)
Apply slope formula
Substitute 2 for m and
![(x_5,y_5) = (x,0)](/tpl/images/1079/8178/6fcf7.png)
Cross Multiply
Collect Like Terms
Divide both sides by 2
Ответ:
984573
Step-by-step explanation: