In order to solve this problem, you need to use point slope form of a line. The formula for that is...
y - y₁ = m(x - x₁)
Let x₁ be 0
Let y₁ be 3
Remember that slope intercept form of a line is y = mx + b, where m stands for the slope and b stands for the y intercept.
y - 3 = -5(x - 0)
y - 3 = -5x + 0
+ 3 + 3
--------------------------
y = -5x + 3
The final answer in slope intercept form is y = -5x + 3. I hope this makes sense to you. If you have any more questions about math, let me know and I can try to help you figure them out :-)
12.5%, every 500 years you take away half of the substance (50%) -> 25% -> 12.5%
you divide your number 3 times because 1500/500=3
Answer:
2Y = 3X - 1
Step-by-step explanation:
Given that a line passes through A(6,5) and B(4,2) find equation of a line parallel to AB and passes through (7,10)
Let's first find the slope of the equation by using the formula:
M = (Y2 - Y1)/(X2 - X1)
M = (2 - 5)/(4 - 6)
M = -3/-2
M = 1.5
Since the line is parallel to AB, the slope will also be the same.
Using general linear equation formula
Y = MX + C
Let's find C by substitute X and Y with
( 7, 10)
10 = 1.5(7) + C
Make C the subject of the formula
C = 10 - 10.5
C = - 0.5
Substitute C into the formula
Y = 1.5X - 0.5
Or
Y = 3/2(X) - 1/2
2Y = 3X - 1
Sum of interior angles of a quadrilateral = 360 degrees.
x + 10 + x + 10 + 2x + 50 + 2x + 50 = 360
6x + 120 = 360
6x = 360 - 120 = 240
x = 240/6 = 40
x = 40
A = D = 2(40) + 50 = 80 + 50 = 130 degrees
B = C = 40 + 10 = 50 degrees
Unfold it and add 4.
-3 < x-4 < 3
1 < x < 7