In this unit, you calculated the surface area of solid figures composed of polygons, such as rectangles and triangles. But imagi
2 answers:
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For the equation y = 2x + 3, calculate the x and y intercepts
when y = 0
0 = 2x + 3
x = -3/2
x = -1.5
The x-intercept = (-1.5, 0)
when x = 0
y = 2(0) + 3
y = 3
The y-intercept = (0, 3)
Locate the points (-1.5, 0) and (0, 3) to graph the equation y = 2x + 3
For the equation y = -1/3 x + 2, calculate the x and y intercepts
when y = 0
The x-intercept = (6, 0)
when x = 0
y = -1/3 (0) + 2
y = 2
The y-intercept = (0, 2)
The graphs of the two equations are plotted using their x and y intercepts as shown below
y = 2x + 3 is plotted in red
y = -1/3 x + 2 is plotted in blue
The solution to the system of equations represented by the two lines is (-0.429, 2.143)
Answer:
Step-by-step explanation:
-2x + 2y = -4 (times 3) -6x + 6y = -12
3x + 3y = -18 (times 2) 6x + 6y = -36
.
-6x + 6y = -12
<u>6x + 6y = -36 </u>+
12y = -48
y = -4
.
Substitute the value of y to the one of equations
-2x + 2(-4) = -4
-2x - 8 = -4
-2x = -4 + 8
-2x = 4
x = -2