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Nat2105 [25]
4 years ago
5

What is the equation of the line that has a slope of -3 and goes through the point (3,-1)

Mathematics
1 answer:
Pachacha [2.7K]4 years ago
5 0

Answer:

y = -3x+8

Step-by-step explanation:

We can use the slope intercept form of an equation

y = mx+b  where m is the slope and b is the y intercept

y = -3x+b

Substitute the point into the equation

-1 = -3(3)+b

-1 = -9+b

Add 9 to each side

-1+9 = -9+9+b

8 =b

y = -3x+8

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If you start with a number, add 5, then multiply by 7, the result is 133. what was the original number
sergeinik [125]
The original number was:  " 14 " .

____________________________________
 a + 5 = b ;

 b * 7 = 133 .
______________________________________________
What is:  "a" ?
______________________________________________
133 / 7 = 19 = b ;

a + 5 = b = 19 ;

a + 5 = 19 ;

Subtract "5" from each side of the equation;
to isolate "a" on one side of the equation; and to solve for "a" ;
_______________________________________________
    a + 5 − 5 = 19 − 5  ;

to get:
________________________________________________
             a = 14  .
________________________________________________
 Let us check our answer:

Start with "14" ;

Add "5" :   "14 + 5 = 19 " .
______________________
then multiply by "7" :  "19 * 7"
__________________________
and the result is: 133 ?
__________________________
   19 * 7 = ? 133 ? Yes!
__________________________
5 0
3 years ago
What is the circumference of a circle with a diameter of 9 inches? (use 22/7 for pi)
cupoosta [38]

Answer:

28 inches

Step-by-step explanation:

The circumference is given by

C = pi *d

C = 22/7 ( 9)

C =198/7

    =28.28571429 inches

5 0
3 years ago
P= (2,3) q= (9,7) find slope and reduce
Dennis_Churaev [7]
The slope of the line containing the points (2,3) and (9,7) is 4/7. 

Slope Formula:    y₂ - y₁         7 - 3           4
                           ------------- = ----------- = -------
                              x₂ - x₁          9 - 2           7

4/7 can't be reduced any further, so that's your final answer.
4 0
4 years ago
Pls help with correct choice
LuckyWell [14K]

Answer:

it is 4,-8


Step-by-step explanation:


4 0
3 years ago
Use graphing technology to find the range of the function f(x)=2^x+1.f(x)=2 <br> x<br> +1
marusya05 [52]

The range of the given function is equal to (2, 7).

<h3>What is a range?</h3>

A range can be defined as the set of all real numbers that connects with the elements of a domain. This ultimately implies that, a range refers to the set of all possible output numerical values, which are shown on the y-axis of a graph.

<h3>How to identify the range and domain of this graph?</h3>

The vertical extent of a graph represents all range values and they are always read and written from smaller to larger numerical values, and from the bottom of the graph to the top.

Similarly, the horizontal extent of a graph represents all domain values and they are also read and written from smaller to larger numerical values, and from the left of the graph to the right.

By critically observing the graph of function f(x) shown, we can infer and logically deduce the following:

Range = (2, ∞).

Read more on range here: brainly.com/question/17295757

#SPJ1

3 0
1 year ago
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