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Rzqust [24]
3 years ago
8

Evaluate the expressions when x = 10 & y =8. 2y

Mathematics
1 answer:
klasskru [66]3 years ago
5 0

Answer: 64

Step-by-step explanation:

y=8

plug in 8 for y

2(8)=64

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Sauron [17]
-----------------------------------------------------------
Make y the subject :
-----------------------------------------------------------
y - 3 = 4(x + 8)      
y - 3 = 4x + 32           // Apply distributive property
y = 4x + 35                // Add 3 to both sides

-----------------------------------------------------------
Identify Slope : 
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Slope = 4

-----------------------------------------------------------
Find a point on the line :
-----------------------------------------------------------
When x = 0, 
y = 4(0) + 35              // Sub x = 0 into the equation 
y = 35                         // Combine like terms
Point = (0, 35)

-----------------------------------------------------------
Answers :
(a) Slope = 4
(b) One point on the line is (0, 35)
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