If you graph y=7x-9 and y=3x-1 the two lines will intersect at one point. That is how you graphically "solve" the system of equations.
Both of these lines are of the form y=mx+b where m is the slope and b is the y-intercept.
So for y=7x-9, the slope is 7 and the y-intercept is -9
For y=3x-1, the slope is 3 and the y-intercept is -1
....
The solution for this system occurs when both coordinates are equal to each other so we can say:
7x-9=3x-1 subtract 3x from both sides
4x-9=-1 add 9 to both sides
4x=8 divide both sides by 4
x=2, making y=3x-1 become:
y=3(2)-1=6-1=5, so the solution to the system of equations is:
(2,5)
A line segment has two endpoints unlike a line where a line is infinite with no end! :) Think of a line segment essentially just being two points on a line. :)
♥ 1425/19
You need to always have the larger first when diving
So divide:
You get 75
75 is your answer.
To solve:
Find out how many times 19 goes into 1425:
Check:
19*75=1425
Final answer: 75
Answer:
C. 120
Step-by-step explanation:
area of trapezoid = (base1 + base2)h/2
area = (10 cm + 6 cm) * 15 cm/2
area = 16 cm * 15 cm / 2
area = (240 cm^2)/2
area = 120 cm^2