MATHEMATICS HIGH SCHOOL

Write in slope intercept form an equation of the line that passes through these given points (-1,-1) (1,5)

Answers

Answer 1
Answer: Final answer: Y=3x+2
Since you are given 2 points. You will plug the points into this formula. X2-X1/Y2-Y1. This will get you your slope. Then you will plug one of the points given and your slope into point slope form. This form is Y-Y1=m(X-X1). Then you to get your final answer you want to get Y to be by itself.

Your problem:
5-(-1)/1-(-1)
5+1/1+1
=6/2 =3
m=3

Y-(-1)=3(X-(-1))
Y+1=3(X+1)
Y+1=3X+3
Y=3X+2

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What is the equation of a line that is parallel to the line x=14 and contains the point (-3,7)?

Pleas helpThe cube has a volume of 27 in3.

Find the volume of a scaled image with a scale factor of 2.

? in3

Cube with a side length of three inches

Answers

Actual cube has sides ∛27 = 3 inches.

When you scaled it with a factorof two, each side will become 3 x 2 = 6 inches.

The volume of the new cube is (6 in)^3 = 216 in^3

Realize that you could calculate it by raising the scale factor to the third power.

2^3 = 8

27 x 8 = 216
*- 27 cubed by 2!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

1. What is the slope of the line that passes through the points (-2, 5) and (1, 4)?a. -3
b. -2
c. -1/3
d. 1/3

2. A line has a slope -5/3. Through which two points could this line pass?

a. (12,13) (17, 10)
b. (16, 15) (13, 10)
c. (0, 7) (3, 10)
d. (11, 13) (8, 18)

3. The pair of points (6,y) and (10, -1) lie on a line with slope 1/4. What is the value of y?

a. -5
b. -2
c. 2
d. 5

4. What is the slope of a vertical line?

a. -1
b. 0
c. 1
d. Undefined

5. The table below gives the best cost per person to rent a fishing charter boat. Find the rate of change given that it is a constant. Also explain what the rate of change means for this situation.

People l Cost ($)
2 l 110
3 l 165
4 l 220
5 l 275

a. 1/55
b. 110/1
c. 1/275
d. 55/1

Answers

1. (-2,5)(1,4)
slope = (4 - 5) / (1 - (-2) = -1 / 3

2. (11,13)(8,18)

3. (6,y)(10,-1)
    slope = (-1 - y) / (10 - 6) = (-1- (-2) / 4 = 1/4
     y = -2

4. undefined

5. (2,110)(3,165)
     slope = (165 - 110) / (3 - 2) = 55/1 
     this basically means that to rent a charter boat, it will cost 55 per person

What value of x will make this proportion true 3/29 =× /116?

Answers

3 / 29 = x / 116

29 x = 116 . 3

29 x = 348

x = 348 / 29

x = 12

hope this helps!

4(8x + 1) − 3x = 2 − 3(4x + 2)
good luck!

Answers

Answer:

x=  −8/41

Step-by-step explanation:

Step-by-step explanation:

Long divide the coefficients to find:

−

x

4

+

8

x

3

−

3

x

2

+

4

x

−

2

x

2

+

4

=

−

x

2

+

8

x

+

1

+

−

28

x

−

6

x

2

+

4

Explanation:

I like to long divide the coefficients, not forgetting to include

0

for any missing power of

x

...

enter image source here

The process is similar to long division of numbers.

For a more fully explained example, see:

The hypotenuse is the side across from the right angle, and it's also the longest side of the triangle.

Answers

Yes You are correct. 

Answer:

true

Step-by-step explanation:

What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve.

Answers

U substitution uses the variable "u" as a replacement for another variable. In this case, we will substitute in u for x^2. Since u=x^2 we can now rewrite the equation. 9u^2 -2u -7. This is factored to (u-1)(9u+7). Now put x^2 back in for u. (x^2 -1)(9x^2 +7). Factor again. (x-1)(x+1)(9x^2 + 7). Since 9x^2 + 7 doesn't factor, we don't bother with it any more.The answer is x=1 or x=-1.
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