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In the (x, y) coordinate plane, what is the y-intercept of the line -9x - 3y = 15?
- a)-9
- b)-5
- c)-3
- d)3
- e)15
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In the (x, y) coordinate plane, what is the y-intercept of the line -9...
To find the y-intercept of a line, we need to determine the point at which the line intersects the y-axis. In other words, we need to find the value of y when x is equal to 0.
Given the equation of the line, -9x - 3y = 15, we can substitute x = 0 into the equation and solve for y.
Substituting x = 0:
-9(0) - 3y = 15
0 - 3y = 15
-3y = 15
Now, we can solve for y by dividing both sides of the equation by -3:
-3y/-3 = 15/-3
y = -5
Therefore, the y-intercept of the line -9x - 3y = 15 is -5. This means that the line intersects the y-axis at the point (0, -5).
Given the equation of the line, -9x - 3y = 15, we can substitute x = 0 into the equation and solve for y.
Substituting x = 0:
-9(0) - 3y = 15
0 - 3y = 15
-3y = 15
Now, we can solve for y by dividing both sides of the equation by -3:
-3y/-3 = 15/-3
y = -5
Therefore, the y-intercept of the line -9x - 3y = 15 is -5. This means that the line intersects the y-axis at the point (0, -5).
Community Answer
In the (x, y) coordinate plane, what is the y-intercept of the line -9...
The correct answer is B. To find the y-intercept of the line -9x - 3y = 15, convert the equation to slope-intercept form. To so do, first add 9x to both sides to get - 3y = 9x + 15. Then divide by -3 to get y = -3x - 5. Since the slope-intercept form of the equation is y = -3x - 5, the slope is —3 and the y-intercept is 5.
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In the (x, y) coordinate plane, what is the y-intercept of the line -9x - 3y = 15?a)-9b)-5c)-3d)3e)15Correct answer is option 'B'. Can you explain this answer?
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