Put it in slope intercept form and plot the y-axis then plot each of the slopes finding the x-intercept
Answer:
35 cm ^2
Step-by-step explanation:
5x5 = 25
5-3 = 2
5x2 = 10
25+10 = 35cm^2
Equation in slope-intercept form of the line that passes through (6,-2) and (12,1) is:
Step-by-step explanation:
Given points are:
(x1,y1) = (6,-2)
(x2,y2) = (12,1)
The slope intercept form is:
We have to find the slope first
Putting the value of slope
To find the value of b, putting (12,1) in the equation
Putting the values of m and b
Hence,
Equation in slope-intercept form of the line that passes through (6,-2) and (12,1) is:
Keywords: Equation of line, slope-intercept form
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There are two equation:
1) From Kim
2) From Daniel
Let:
x be the cost of rolls of plain wrapping paper
y be the cost of rolls of shiny wrapping paper
Kim:
7x + 8y = 140
Daniel:
14x + 7y = 154
<u>Using elimination method:</u>
(7x + 8y = 140) * -2 (Multiplying the equation by -2)
-14x - 16y = -280
-14x -16y = -280
14x + 7y = 154
------------------------------
0x - 9y = -126
9y = 126 (Negative sign cancels from both sides)
y = 126 /9
y = 14
The cost of each shiny wrapping paper is $14.
Now solve x, you pick any two equation to solve for x.
7x + 8y = 140
7x + 8(14) = 140 (You know from above y =14)
7x + 112 = 140
7x = 28
x = 28/7
x = 4
The cost of each plain wrapping paper is $4.
Solution: (4,14)
Step-by-step explanation:
hm
isnt is supposed to be x = -5
4x/7-6 = -20
4x/1 = -20
4x =-20
x = -5
