Step-by-step explanation:
I'll do line A for you and you can use the formulas to solve lines B and C yourself, since its good for you to practice doing these questions yourself
a)
The gradient, m, is calculated using m = (y2-y1)/(x2-x1) where x1,x2,y1 and y2 can be any ordered pairs on the line. I'm going to use (4,0) and (7,3) as the 2 points.
m = (3-0)/(7-4) = 3/3 = 1
b)
The y-intercept is where the line intersects with the x-axis. In this case (0,-4)
c)
The equation of a linear line is y=mx+b (or c depending on which country you are from)
y = 1x-4
y=x-4
Now try the other 2 lines yourself!
If this answer has helped you, considered making this the brainliest answer!
-2
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Step-by-step explanation:
first you group like terms.
-3s-s+8+1-2
-4s+7
Given:
Yamir is twice as old as Pato.
In three years, the sum of their ages will be 30.
Pato's current age is represented by 
.
To find:
The equation that could be used to correctly solve for .
Solution:
We know that, Pato's current age is represented by a, then
Yamir's age = 
After three years,
Pato's age = 
Yamir's age = 
In three years, the sum of their ages will be 30.
Therefore, the correct option is 2.
M is equal to 2 over 2.5. I don’t have enough information to figure out b
