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makkiz [27]
3 years ago
7

If the factors of a quadratic function are (x + 2) and (x − 9), what are the x-intercepts of the function?

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
8 0

Answer: D. (-2,0) and (9,0)

Step-by-step explanation:

When you equate the factors to 0 you get

(X+2) = 0

X = -2

(X-9) = 0

X= 9

Here the Y value is 0 as you find the factors of x when the Y value is 0.

So the answer is (-2,0) and (9,0)

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Answer:

6 11/15

Step-by-step explanation:

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In the generalized slope-intercept equation of a line, the slope of the line is
xxTIMURxx [149]

Answer:

A. True

Step-by-step explanation:

A generalized slope-intercept equation of a line is of the form:

y=mx+b

Where, 'm' is the slope of the line and 'b' is the y-intercept of the line.

The slope is the rate of change of 'y' with respect to changing 'x'. The slope of a line can be positive or negative.

If 'y' increases with 'x', slope is positive. If 'y' decreases with 'x', slope is negative.

In the above equation, the term that is multiplied to 'x' is called the coefficient of 'x'. Here, 'm' is multiplied to 'x'.

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4 0
3 years ago
2. At 1 pm, you leave Ellensburg at a constant speed of 75 miles per hour. At 2:30 pm, your
MA_775_DIABLO [31]

Here, we are required to determine how many hours your friend will drive in order to catch you.

(a)<em> Your friend will have to drive 7 and a half hours inorder to catch </em><em>you.</em>

<em>(</em><em>b)</em><em> </em><em>You </em><em>both </em><em>will </em><em>be </em><em>6</em><em>7</em><em>5</em><em> </em><em>miles</em> <em>away </em><em>from </em><em>Ellensburg</em><em> </em><em>at </em><em>that </em><em>time.</em>

If you leave at 1 pm; At 2:30pm;

  • That is; 1 and a half hours after leaving; you must have covered a distance, d = 75 × 1.5
  • d = 112.5miles.

Therefore, your position; S after 2:30pm is given by;

S(a) = 75t + 112.5 miles from Ellensburg.

For your friend; travelling at 90miles/hr;

  • His position is given as; S(b) = 90 × t

(a) For your friend to catch you, you both must be in the same position;

  • i.e S(a) = S(b)

75t + 112.5 = 90t

90t -75t = 112.5

t = 112.5/15

t = 7.5hours

(b) To determine how far you both are from Ellensburg; we can either evaluate:

S(b) = 90t or S(a) = 75t + 112.5

Therefore, By evaluating S(b) = 90t.

S(b) = 90 × 7.5

S(b) = 675miles from Ellensburg.

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6 0
2 years ago
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KatRina [158]

Answer: choice D) 5

Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

you could also maybe make it into a really badly done pokeball

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