Answer:
Step-by-step explanation:
- x+20=3x
- 3x-x=20
- 2x=20
- x=20/2
- x=10
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1 answer:
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Answer:
Step-by-step explanation:
A=(1,21)
B=(3,15)
slope:- Δy/Δx=21-15/1-3=6/-2= -3
Equation:-
y-y1=m(x-x1)
y-21=-3(x-1)
⇒y=-21=-3n+3
→ y= -3n+3
<u>y= -3n+24</u>
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<u>hope it helps..</u>
<u>have a great day!!</u>
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Answer:
y = 42x
Step-by-step explanation:
since it is linear it is proportional
using y = mx + c where m is the gradient
working out the gradient pick any two coordinates, I'll use (6, 252) and (12, 504)
m = 42
input m = 42 in y = mx + c
the equation is now y = 42x + c
use one of the coordinates (6, 252) or (12, 504), I'm using (6, 252)
y = 42x + c where y = 252 and x = 6, solving for c:
252 = (42 × 6) + c
252 = 252 + c
c = 0
so the final equation is y = 42x