<span>an equation for the line in point-slope form and general form is :
y = ax+b a : </span>slope ; the <span>Passing through (x' ; y')
</span>y' = ax'+b
y-y' =a(x-x') and : x' =-5 y' =6
calculate a :
let : y = ax+b .....(D)
....<span>y=7x-1...</span>.(D')
.(D) perpendicular to(D') : slope (D) × slope (D') = -1
slope (D') = 7
slop(D)×(7 = -1
slope (D) = -1/7
equation for the line : y-y' =a(x-x')
y-6 =(-1/7) (x+5)
<u>Given</u>:
The number 12 is the geometric mean between 3 and a number x.
We need to determine the value of x.
<u>Value of x:</u>
Since, we know that the geometric mean is the square root of the product of two numbers.
Hence, we have;
where a and b are two positive numbers.
Substituting Geometric mean = 12, a = 3 and b = x, we get;
Squaring on both sides, we get;
Dividing both sides of the equation by 3, we have;
Thus, the value of x is 48.
87/0 because they are equal.
<span>C: </span><span>Katie’s new chair was on sale for 15% off, making it cost $137.32, but Katie wrote down the before-sale price.
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i just took this test and got it right.
