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
Gennadij [26K]
2 years ago
12

Please help me. Look at the picture.

Mathematics
2 answers:
kotegsom [21]2 years ago
7 0

Answer:

Step-by-step explanation:

To find the equation of the line in slope-intercept form we to find the y-intercept(b) and the slope(m)

For the y-intercept(b) we can see that the line crosses/intersects the y-axis at 40 so the value of b equals 40 which means our y-intercept is 40

now all that is remaining is the value of m which we can find through the formula:

m=\frac{y_2-y_1}{x_2-x_1}

we take any two coordinates which lie on the line for example

(0 , 40) and (2 , 140) and plug it into our formula

m=\frac{y_2-y_1}{x_2-x_1} \\\\m=\frac{140-40}{2-0}\\\\m=\frac{100}{2} \\\\m=50

so the slope of the line is 50 which is m , so the equation of the line in slope-intercept form would be:

y=mx+b\\y=50x+40

nika2105 [10]2 years ago
4 0

Answer:

40 by 2.5 ?

Step-by-step explanation:

You might be interested in
Find the polynomial function
laiz [17]

Answer:

y = 2x³ +x² -3x +6

Step-by-step explanation:

The polynomial correlation function of a graphing calculator can work with the table of function values to give you the equation. (See attached)

_____

If you want to solve this by hand, you can write the equations for the unknown coefficients in the polynomial function, then solve those. First of all, notice that you are given the y-intercept, (0, 6), so you know one of the coefficients already. That leaves a system of 3 equations in 3 unknowns that need to be solved.

___

<em>Writing the equations</em>

... ax³ +bx² +cx +6 = y . . . . the generic linear equation in a, b, c that you're writing

For x = -1:

... -a +b -c +6 = 8

For x = 1

... a + b + c + 6 = 6

For x = 2

... 8a +4b +2c +6 = 20

In augmented matrix terms, this set of linear equations looks like ...

\left[\begin{array}{ccc|c}-1&1&-1&2\\1&1&1&0\\8&4&2&14\end{array}\right]

___

<em>Solving the equations</em>

There are a number of ways to solve these. Again, a graphing calculator often has solution functions, such as reducing a matrix to row-echelon form, that will solve this in a keystroke or two.

If you add the first two equations, you get ...

... 2b = 2 ⇒ b = 1

Substituting that into the first equation allows you to simplify it to ...

... -a -c = 1

Dividing the third equation by 2 (and substituting for b) makes it ...

... 4a +c = 5

Adding these equations gives ...

... 3a = 6 ⇒ a = 2

Then ...

... c = -a -1 = -2 -1 = -3

And our polynomial function is ...

... y = 2x³ +x² -3x +6

7 0
2 years ago
Which is a solution to the equation 6 x + y = 4<br><br>1, -10 <br>2, -8<br>2, 8<br>1, 2
NISA [10]

Answer:

1,-10 and 2,-8

Step-by-step explanation:

If you substitute each answer choice:

6+-10=4

12+-8=4

12+8=4

6+2=4

The only ones that would make sense are the first and second one.

4 0
3 years ago
Rex spent $6.42 at the store. He gave the cashier the money shown above. How much money did Rex get back from the cashier?
cupoosta [38]
The answer is d 10-6.42 is $3.58
4 0
3 years ago
Read 2 more answers
Please answer this question Please Thank you have a nice day
sp2606 [1]

Answer:

17t+9

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
7(-2k+4)-6=7k-20 what is the answer
lord [1]
The answer to this equation would be k=2
7 0
3 years ago
Other questions:
  • A customer decides to build a fence around the backyard. The yard is rectangular, and with the house an equal distance from both
    14·1 answer
  • What is the range of the function in this table
    12·2 answers
  • 37,015 in word form please
    11·2 answers
  • Which of the following is an arithmetic sequence?
    8·1 answer
  • Can someone help with this please and thank you
    13·2 answers
  • In the Multiplication Shown, different letters represent different digits. What 3 digit number does SAY represent?
    13·1 answer
  • Expand by using the distributive property: (a + bc)2x
    7·2 answers
  • Complete the equation so that it had infinitely many solutions
    5·1 answer
  • Need help with this plz help me
    11·2 answers
  • PLS ANSWER BEFORE 2:56<br> 30 POINTS
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!