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Mashcka [7]
3 years ago
6

I need help ASAP !!!

Mathematics
1 answer:
lbvjy [14]3 years ago
8 0
The answer is (x,y) —> (y,-x)
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Identify the equation in slope-intercept form for the line with the given slope that contains the given point.
andre [41]
Y=3/4x+1/2

Use the equation y=mx+b and plug in the coordinates and the slope into the equation.

2=3/4(2)+b

You need to find the b (y-intercept).

2=3/2+b
1/2=b

Now that you know the slope and the y-intercept the equation is y=3/4x+1/2
4 0
3 years ago
The current of a river is 3 miles per hour. A boat travels to a point 176 miles upstream and 176 miles back in 19 hours. What is
serious [3.7K]

Answer:

If I am understanding your question, the total upstream is 8 miles and another 8 miles downstream.

Let s = the speed of the boat in still water

d = rt

8 = 5(s + 3)  downstream

8 = 5s + 15  equation 1

8 = 5(s - 3)   upstream

8 = 5s - 15    Add equation 1

8 = 5s + 15 

16 = 10s    Divide both sides by 10.

s = 16/10 = 8/5 = 1.6 mph

 

4 0
2 years ago
How you can know a fraction is equivalent to another fraction
Alex73 [517]
The denominator. Say for instance, you have 4/12 and 1/6. They are equivalent.
6 0
3 years ago
Read 2 more answers
Select the choice that has the correct area and perimeter for the figure .
laila [671]

Answer: B

Step-by-step explanation:

8 0
3 years ago
The graph of a quadratic function having the form f(x) = ax? + bx + c passes
insens350 [35]

Answer:

  f(-3) = -20

Step-by-step explanation:

We observe that the given x-values are 3 units apart, and that the x-value we're concerned with is also 3 units from the first of those given. So, a simple way to work this is to consider the sequence for x = 6, 3, 0, -3. The corresponding sequence of f(x) values is ...

  34, 10, -8, ?

The first differences of these numbers are ...

  10 -34 = -24

  -8 -10 = -18

And the second difference is ...

  -18 -(-24) = 6

For a quadratic function, second differences are constant. This means the next first-difference will be ...

  ? -(-8) = -18 +6

  ? = -12 -8 = -20

The value of the function at x=-3 is -20.

_____

The attachment shows using a graphing calculator to do a quadratic regression on the given points. The graph can then be used to find the point of interest. There are algebraic ways to do this, too, but they are somewhat more complicated than the 5 addition/subtraction operations we needed to find the solution. (Had the required x-value been different, we might have chosen a different approach.)

5 0
3 years ago
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