1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anastaziya [24]
3 years ago
5

Please help me find the slope and y intercept

Mathematics
1 answer:
lbvjy [14]3 years ago
5 0

Answer:

y= -7x +4

Step-by-step explanation:

you find the slope by the slope equation y2-y1/x2-x1. I used (0,4) and (-1,11).

The slope equals -7.

You then use point slope to find the rest of the equation.

y-y1=m(x-x1).

y-4=-7(x-0)

y-4=-7x

y=-7x+4

You might be interested in
5x-2 what’s the slope and y-int ?
uranmaximum [27]

Answer:

Slope = 5.

y-int = (0, -2).

Step-by-step explanation:

y = 5x - 2

The slope intercept form is

y = mx + b  where m = the slope and b = the y-intercept.

So here,  the slope = 5 and the y-intercept is where y = -2.  That is the point (0, -2).

8 0
3 years ago
If the the area of a bedroom is 90 square feet what is the length and width
Anna [14]
30 x 30........................
6 0
3 years ago
A rectangular box with a volume of 272ft^3 is to be constructed with a square base and top. The cost per square foot for the bot
ASHA 777 [7]

Answer:

The dimensions of the box is 3 ft by 3 ft by 30.22 ft.

The length of one side of the base of the given box  is 3 ft.

The height of the box is 30.22 ft.

Step-by-step explanation:

Given that, a rectangular box with volume of 272 cubic ft.

Assume height of the box be h and the length of one side of the square base of the box is x.

Area of the base is = (x\times x)

                               =x^2

The volume of the box  is = area of the base × height

                                           =x^2h

Therefore,

x^2h=272

\Rightarrow h=\frac{272}{x^2}

The cost per square foot for bottom is 20 cent.

The cost to construct of the bottom of the box is

=area of the bottom ×20

=20x^2 cents

The cost per square foot for top is 10 cent.

The cost to construct of the top of the box is

=area of the top ×10

=10x^2 cents

The cost per square foot for side is 1.5 cent.

The cost to construct of the sides of the box is

=area of the side ×1.5

=4xh\times 1.5 cents

=6xh cents

Total cost = (20x^2+10x^2+6xh)

                =30x^2+6xh

Let

C=30x^2+6xh

Putting the value of h

C=30x^2+6x\times \frac{272}{x^2}

\Rightarrow C=30x^2+\frac{1632}{x}

Differentiating with respect to x

C'=60x-\frac{1632}{x^2}

Again differentiating with respect to x

C''=60+\frac{3264}{x^3}

Now set C'=0

60x-\frac{1632}{x^2}=0

\Rightarrow 60x=\frac{1632}{x^2}

\Rightarrow x^3=\frac{1632}{60}

\Rightarrow x\approx 3

Now C''|_{x=3}=60+\frac{3264}{3^3}>0

Since at x=3 , C''>0. So at x=3, C has a minimum value.

The length of one side of the base of the box is 3 ft.

The height of the box is =\frac{272}{3^2}

                                          =30.22 ft.

The dimensions of the box is 3 ft by 3 ft by 30.22 ft.

7 0
3 years ago
Please help pls pls help pls belp
Delvig [45]

Answer:

After 1 second, the ball will reach a maximum height of 16 feet

Step-by-step explanation:

The height of the ball after t seconds: h(t) = -16t^2 + 32t

The graph of this quadratic function is parabola which opens downwards. The vertex of a quadratic equation is the maximum or minimum point on the equation's parabola

t = -b/2a = -(32)/2(-16) = -32/-32 = 1 second

then

h(t) = -16(1)^2 + 32(1) = -16 + 32 = 16

After 1 second, the ball will reach a maximum height of 16 feet

8 0
2 years ago
What is slope of the line
aleksley [76]
3 is the correct slope of the line:)
3 0
2 years ago
Read 2 more answers
Other questions:
  • A bag contains 4 red marbles and 5 blue marbles. What is the probability of randomly selecting a blue marble and then, without r
    11·1 answer
  • Please help me I’m stuck! :(
    12·1 answer
  • What is the y-intercept of f(x)=(1/4)^x<br> A. (1,0)<br> B. (1 1/14)<br> C. (0,0)<br> D. (0,1)
    6·1 answer
  • The volume of a cereal box is 264 in3 . If it has a width equal to 3 inches and length of 8 inches, what is the height?
    10·2 answers
  • Help me please! Thank you =D
    10·2 answers
  • Jon’s Ice Cream Parlor is a store that sells 120 ice cream cones a day. If sales increase by 75%, how
    10·1 answer
  • Add 4/5 + 1/4 visually!
    15·1 answer
  • Help please!
    15·1 answer
  • Point V is on line segment \overline{UW}
    13·1 answer
  • Please work out -80 ÷ -8​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!