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yarga [219]
2 years ago
7

Which scenarios represent one quantity changing at a constant rate per unit interval relative to the other quantity?

Mathematics
1 answer:
irinina [24]2 years ago
5 0

Answer:

Graphs come in all sorts of shapes and sizes. In algebra, there are 3 basic types of graphs you'll see most often: linear, quadratic, and exponential. Check out this tutorial and learn how to determine is a graph represents a linear, quadratic, or exponential function!

Step-by-step explanation:

thats all

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Y=x^2 -9x at x = 4 Find an equation of the tangent an an equation of the normal
Montano1993 [528]

The tangent line to <em>y</em> = <em>f(x)</em> at a point (<em>a</em>, <em>f(a)</em> ) has slope d<em>y</em>/d<em>x</em> at <em>x</em> = <em>a</em>. So first compute the derivative:

<em>y</em> = <em>x</em>² - 9<em>x</em>   →   d<em>y</em>/d<em>x</em> = 2<em>x</em> - 9

When <em>x</em> = 4, the function takes on a value of

<em>y</em> = 4² - 9•4 = -20

and the derivative is

d<em>y</em>/d<em>x</em> (4) = 2•4 - 9 = -1

Then use the point-slope formula to get the equation of the tangent line:

<em>y</em> - (-20) = -1 (<em>x</em> - 4)

<em>y</em> + 20 = -<em>x</em> + 4

<em>y</em> = -<em>x</em> - 24

The normal line is perpendicular to the tangent, so its slope is -1/(-1) = 1. It passes through the same point, so its equation is

<em>y</em> - (-20) = 1 (<em>x</em> - 4)

<em>y</em> + 20 = <em>x</em> - 4

<em>y</em> = <em>x</em> - 24

3 0
3 years ago
A coat regularly priced at $188 is on sale for 25% off. what is the sale price
Allushta [10]
To find the answer first find the base number or 1% of $188 which is 1.88. Next find what percent is asking for 25% so multiply by 25 1.88 which is 47 so 47-188 = 141 this is one way to do it
3 0
3 years ago
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Usually, in sports, we expect top athletes to get better over time. We expect future athletes to run faster, jump higher, throw
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Answer:

125

Step-by-step explanation:

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2 years ago
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If you pay $35 for a drug and the selling price is $50 what is the mark-up of this drug
Daniel [21]

Answer:

15$

Step-by-step explanation:

15$

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(A) Write an expression for a number that is five <br> times greater than two
vovangra [49]
5x+2 because you have to multiply 5 by x and then add two
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3 years ago
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