Determine a relationship between the x- and y- values. write an equation.
x =1 2 3 4
y = 4 5 6 7Step One: Determine two coordinates written as (x,y)
(1,4) (2,5)
Step Two: Use the formula
Step Three: Simplify to identify the slope
Step Four: Plug your slope (m) into the equation y=mx+b
y = 1x + b
Step Five: Using a coordinate of your choice, plug x and y in to their respective places. (I'm using (1,4))
4 = 1*1 + b
Step Six: Simplify
Step Seven: Isolate b
Step Eight: Rewrite your equation
y = 1x + 3
OR
y = x + 3
(It's more likely you'll see it written the second way)
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the value of x is x=1/12'
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The top row, on the right.
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Answer:
David is 30
Jacob is 9
Step-by-step explanation:
The sum of David and Jacobs age is 39
d + j = 39
d = 39 - j
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Two years ago David was four times Jacobs age
(d - 2) = 4(j - 2)
d - 2 = 4j - 8
d = 4j - 6
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Set the equations equal
4j - 6 = 39 - j
5j = 45
j = 9
d = 4(9) - 6
d = 30