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professor190 [17]
3 years ago
15

Determine intervals y= -x^3 + 3x^2 -2

Mathematics
1 answer:
motikmotik3 years ago
3 0

Answer:

(2,2) and (0,-2)

Step-by-step explanation:

Use the website desmos for questions like graphing

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-3+ 3x (x-7)=-6 (-5+ 4×)
Dennis_Churaev [7]
The answer to this question using the quadratic formula is x= -1+3√5/2 and x=-1-3<span>√5/2
</span>that is a square root, or, 3 times the square root of 5 ALL over 2, except for the 1. Same with the other one.
8 0
3 years ago
3. Which statements about the line that passes through (-2, 0) and (2, -4) are true?
diamong [38]

Answer:

B, C, and D.

Step-by-step explanation:

Let's go through each answer choice.

A: To find the slope of a line from two points, we use this formula: (y_2-y_1)/(x_2-x_1). Plugging in the values (-2,0) and (2, -4), we get:

  • (-4-0)/(2+2)
  • -4/4
  • -1

Because option A says the slope is 1, but we got -1, option A is false.

B: To find the y-intercept, we use this formula: b = y_1 - m * x_1

  • b = 0 -(-1) * (-2)
  • b = 1 * (-2)
  • b = -2  

Since we know the value of b is the y-intercept, we could write the y-intercept as (0,-2). Therefore, option B is true.

C: The equation of a line (in slope-intercept form) is y = mx + b, where y - y-coordinate, m = slope, x = x-coordinate, and b = y-intercept. Since we already solved for the y-intercept and slope, let's plug in those values:

  • y = mx +b
  • y = -x -2

As you can see, the equation we got here matches the one in option C, meaning it's true.

D: We know that a point is written like this: (x, y). If the x-coordinate is not zero but the y-coordinate is, then it's the x-intercept. Since the question says that (-2,0) is one of the points the line passes through, and option D says that the x-intercept is (-2,0), it's true.

8 0
3 years ago
Read 2 more answers
Someone help me please???
NeTakaya
Im thinking the 3rd one . I’m not 100 percent sure.
3 0
3 years ago
Is the question ''How many cars were sold each day this month'' statistical or not?
kifflom [539]
2,000 cars............
5 0
3 years ago
jake bought 5 pounds of candy he gave 3 pounds of candy away and he ate 10 ounces candy how many ounces of candy doues jake have
Novosadov [1.4K]

Answer:

22 onces

Step-by-step explanation:

16 ounces in a pound

5-3=2

2x16=32

32-10=22

5 0
3 years ago
Read 2 more answers
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