Choose the graph below that correctly represents the equation 3x + 9y = −18.
Asked by maham237 @ in Mathematics viewed by 320 People
Choose the graph below that correctly represents the equation 3x + 9y = -18.
3x + 9y = -18
9y= -3x -18
y= -1/3x - 2
Answered by maham237 @
The given equation is 3x + 9y = -18. To correctly graph the equation, it would be helpful to write the equation in its slope-intercept form which is expressed as:
y = mx + b where m is the slope and b is the y value when x is 0 or the y-intercept.
3x + 9y = -18
9y= -3x -18
y= -1/3x - 2
Therefore, the slope would be -1/3 and the y-intercept is -2. You use these data to graph the equation.
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