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4x + 3y = 12
3y = -4x + 12
y = -4/3x + 4........so the slope (or gradient) is -4/3...because in y = mx + b form, the slope(gradient) is in the m position and the y int is in the b position....so if u wanted to know the y axis, it would be (0,4)
the x intercept (where the line crosses the x axis) can be found by subbing in 0 for y in the original equation or the slope intercept equation, and solving for x.
4x + 3(0) = 12
4x = 12
x = 12/4 = 3....so the x intercept is (3,0)
Answer:
Step-by-step explanation:
So when x and y, vary inversely, it means that the product of x and y will remain constant such that: 
. This means that the function can be defined as 
by dividing both sides by x. In this case x=12, and y=8, this means the constant is equal to 12 * 8 which is 96. So we have the equation: 
, which can be defined as
Answer:
12
Step-by-step explanation:
x - 
= 8.5
x - 
= 8.5 Convert the mixed fraction to a imroper fraction.
x - 3.5 = 8.5 Convert the improper fraction to a decimal number.
x = 12 Add 3.5 to both sides.
