3 years ago

The vertex of this point is at (-3, 2). which of the following could be its equation?

Mathematics

1 answer:

uranmaximum [27]3 years ago

6 0

Answer:

(-3,2)

Step-by-step explanation:

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Write the point-slope form of the line that passes through (5, 5) and is perpendicular to a line with a slope of 1/4.

Natalija [7]

A perpendicular line would have a slope that is the negative reciprocal of the slope you are given. Therefore the slope of the new line would be -4/1 or just -4.
You can now use point-slope formula and plug in your numbers to figure out the equation of that line.
Point-Slope form: y-y1=m(x-x1)
Therefore your equation would be: y-5=-4(x-5)

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3 years ago

Jamal bought a diamond ring at a 20% discount. He paid $2640 for the ring. Naomi bought a similar ring but was given a discount

Fudgin [204]

Answer: 72%

Step-by-step explanation:

Set Jamal's original ring price = x

$x - x(0.2) = 2640\\x(1-0.2)=2640\\x(0.8)=2640\\x=\frac{2640}{0.8}=3300$