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Airida [17]
3 years ago
13

How would you graph y = 2x + 3 and its inverse?

Mathematics
1 answer:
Umnica [9.8K]3 years ago
7 0
1) To graph y = 2x +3, give  2 different value for x & find its related y value:

for instance if x = 0 , then y = 3

                   if x =  1,  then y = 5
Plot The coordinates of A(90,3) & B(1,5). You need just 2 point to draw a line.

2) The inverse of y=2x+3

a) Switch the x & y ===> x=2y+3

b) subtract 3 from both sides ===> x-3=2y+3-3===> x-3 = 2y

c) divide both sides by 2 ===> (x-3) / 2 =2y / 2 ==> 1/2(x-3)=y

And the inverse function of y = 2x+3 is y= 1/2(x+3)


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Mr. Mathewson increased the amount of weight he lifted each morning from 80 pounds to 90 pounds. By what percentage did Mr. Math
Aleks [24]

Answer:

12.5

Step-by-step explanation:


5 0
4 years ago
Round 167,342,806 to the nearest ten million
Alisiya [41]
167,343,000 my dear friend
8 0
4 years ago
What is the sum of the distances of R to Q and P to Q?
Shalnov [3]

The sum of the distances of R to Q and P to Q is 9 units.

Solution:

Given points are P(–3, 6), Q(3, 6) and R(3, 3).

Distance between two points formula:

   \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Distance from R to Q:

Here x_1=3, y_1=3, x_2=3, y_2=6

Substitute these in the given formula, we get

Distance = \sqrt{(3-3)^2+(6-3)^2}  

               =\sqrt{0+9}

               = 3 units

Distance from R to Q is 3 units.

Distance from P to Q:

Here x_1=-3, y_1=6, x_2=3, y_2=6

Substitute these in the given formula, we get

Distance = \sqrt{(3-(-3))^2+(6-6)^2}  

               =\sqrt{36+0}

               = 6 units

Distance from P to Q is 6 units.

Sum of the distances = 3 + 6 = 9 units

Hence the sum of the distances of R to Q and P to Q is 9 units.

4 0
4 years ago
IM GONNA GIVE 69420 COOKIES TO THE PERSON WHO GETS TRHIS QUESTION CORRECT
Kisachek [45]

Answer:

z = 104 degrees

y = 34 degrees

Step-by-step explanation:

The angle to the left of z must be 76 Degrees as it’s an alternating angle with the 76 Degree angle on the left. It must combine with z to form 180 degrees so it’s 104 degrees.

The angle below z must also combine with z to give 180 degrees so it’s 76.

5y - 94 = 76

5y = 76 + 94

5y = 170

Y = 170/5

y = 34

3 0
3 years ago
SOMEONE PLEASE HELP I CANT GET IT
AnnyKZ [126]
Answer:
y=3x+9

Explanation:
To answer this question, we first have to understand a few key concepts.

1) The equation given (y=3x+9) is written in slope-intercept form, which is y=mx+b.

Heres what the variables mean:
Y=the coordinate
M=the slope
X=the x coordinate
B=the y-intercept (the point on the line that intercepts the y-axis)

2) Parallel lines have the same slope. Using the given equation, we now know that the slope of line s is 3. Therefore, the slope of line t is also 3 (because they are parallel).

So now, this is our equation so far:
y=3x+b

All we need to do now is find b, which we can do by plugging in the coordinate (-6,-9) as the x and y variables.

y=3x+b
-9=3(-6)+b
-9=-18+b
Add 18 to both sides
-9+18=-18+b+18
9=b

And when we plug 9 into y=3x+b, we get:
y=3x+9

(And yes, they are pretty much the same line)

I hope this helps! Please comment if you have any questions.
5 0
4 years ago
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