At x=3 the y output is 7.428. At x=5 the y output is 7.729. Since te rate of change is rise/run, run being the x, you know that it is (something) over 2. The rise would be the difference of the two y outputs. 7.729-7.428= 0.301. Therefore, 0.301/2 would be your answer. Checked by y=0.301/2x+6.975 - the two limes line up at x=3 until x=5 exactly.
3x + 3 = 3y < -- make this 3x - 3y = -3
2x - 6y = 2
multiply by 2 on the first equation
6x - 6y = -6
2x - 6y = 2
subtract them
4x = -8
x = -2
substitute x = -2 into any of the equation
2x - 6y = 2
2(-2) - 6y = 2
-4 - 6y = 2
-6y = 6
y = -1
So the answer is
(-2 , -1)
Answer:
Multiply c and 8
Multiply c and 1
The c just gets copied along.
The answer is c
c
8*c evaluates to 8c
Because of the minus sign
8c becomes - 8c
The answer is -8c
Multiply c and 8
Multiply c and 1
The c just gets copied along.
The answer is c
c
8*c evaluates to 8c
-8*c+8*c evaluates to 0c
-8*c+8*c-12 evaluates to -12
The final answer is
-12
Step-by-step explanation:
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Answer:
$11.50
Step-by-step explanation:
Y=12.5x
because 12.5 is the constant and this is a directly proportional equation
