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Sagot :
Answer:
Question 9: The second answer choice: m = - 3 ; b = - 4
Question 10: the last answer choice: m = -1/2 ; b = -3
Step-by-step explanation:
Question 9 )
We want to find the slope and y intercept of the equation y = -3x - 4
The equation appears to be in slope intercept for, y = mx + b
Where m = slope and b = y intercept
In the equation , -3 takes the spot of "m" meaning the the slope is -3, and -4 takes the spot of b meaning that they intercept is -4.
So m = -3 and b = -4
Question 10 )
Like question 10 we want to find the slope and y intercept of an equation
y = -1/2x - 3
Once again the equation appears to be in slope intercept form , y = mx + b
where m = slope and b = y intercept
In the equation -1/2 takes the spot of m, meaning that the slope is -1/2 and -3 takes the spot of b meaning that the y intercept is -3
So m = -1/2 and b = -3
Remember from now on ;
1 ) The coefficient of x in this form of equations * y = ax + b * is the slope of the function which is a .
2 ) Where ever you wanna find the y-intercept you must to put 0 instead of x and find the y's value ;
Or on the other hand we can say the b or the lonely number in this form of equations * y = ax + b * , is the y-intercept of the function.
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Q 9 )
[tex]slope = m = - 3[/tex]
And
[tex]y = - 3x - 4[/tex]
[tex]y = - 3 \times (0) - 4[/tex]
[tex]y = 0 - 4[/tex]
[tex]y = - 4[/tex]
Thus the second option is the correct one.
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Q 10 )
[tex]slope = m = - \frac{1}{2} \\ [/tex]
And
[tex]y = - \frac{1}{2} \times (0) - 3 \\ [/tex]
[tex]y = 0 - 3[/tex]
[tex]y = - 3[/tex]
Thus the last option is the correct one.
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