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defon
3 years ago
8

Graph 3x + 4y = 12. y

Mathematics
1 answer:
Tema [17]3 years ago
3 0

Answer:

  see below

Step-by-step explanation:

To find the x- and y-intercepts, set each of the variables to zero and solve for the other:

  y-intercept: 0 +4y = 12   ⇒   y = 12/4 = 3

  x-intercept: 3x +0 = 12   ⇒   x = 12/3 = 4

Plot these points (0, 3) and (4, 0), and draw a straight line through them.

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A line passes through point A(10,15). A second point on the line has an x-value that is 125% of the x-value of point A and a y-v
melisa1 [442]

The equation of the line in the point-slope form is y - 15 = -\frac{3}{2} (x - 10)

Step-by-step explanation:

The point-slope form of a linear equation is y-y_{1}=m(x-x_{1}) , where

  • m is the slope of the line, where m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} , (x_{1},y_{1}) and (x_{2},y_{2}) are two points on the line
  • (x_{1},y_{1}) is a point on the line

∵ Point A = (10 , 15)

∵ The x-coordinate of the second point is 125% of x-coordinate

  of point A

∴ x-coordinate of second point = \frac{125}{100} × 10

∴ x-coordinate of second point = 12.5

∵ The y-coordinate of the second point is 75% of y-coordinate

  of point A

∴ y-coordinate of second point = \frac{75}{100} × 15

∴ y-coordinate of second point = 11.25

∴ The coordinates of the second point are (12.5 , 11.25)

Let us find the slope of the line by using the rule of it above

∵ (x_{1},y_{1}) = (10 , 15)

∵ (x_{2},y_{2}) = (12.5 , 11.25)

∴ m=\frac{11.25-15}{12.5-10}=\frac{-3.75}{2.5}=-\frac{3}{2}

Now we can write the equation

∵ The point-slope form is y-y_{1}=m(x-x_{1})

∵ m=-\frac{3}{2}

∵ (x_{1},y_{1}) = (10 , 15)

- Substitute these values in the form of the equation

∴ y - 15 = -\frac{3}{2} (x - 10)

The equation of the line in the point-slope form is y - 15 = -\frac{3}{2} (x - 10)

Learn more:

You can learn more about the linear equation in brainly.com/question/4152194

#LearnwithBrainly

5 0
3 years ago
PLEASE HELP!! I WILL GIVE EXTRA POINTS!
inysia [295]
1. B, dependent variable

2. C, the dependent variable is represented in the 2nd column of a table.

8.
A. Domain: { 0, -3, 4, 5 }
B. Range: { 0, 1, 6, 7, 8 }
C. No, this is not a function because the x-value of 4 (domain) has two corresponding y-values of 6 and 8 (range)
7 0
3 years ago
Using the principle of mathematical induction, show that 41^n-14^n is a multiple of 27​
Harlamova29_29 [7]
Ithwkwlanwnlalmhe is a wona
8 0
3 years ago
Find the value of “x”
zepelin [54]
Ur answer will be 55 because it’s a triangle and a triangle has 180 degrees
180-125=55:)
5 0
3 years ago
Which best explains why 5 x 4 is greater than 5 x 1/4 ?
zmey [24]
Because one is put into fraction form. Therefore the one in fraction form is going to be smaller. 5*4=20 and 5*1/4=1.25. I hope my answer helped you.
3 0
4 years ago
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