URGENT!!!!! 20 POINTS! Kara is graphing the equation |x| + |y| = a , where a is a real number.
2 answers:
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Try this option (it is not the only way):
the points (0;0) and (2;2) belong to the curve. Using the coordinates of these points it is possible to calculate the equation.
the points (0;0) and (2;2) belong to the curve. Using the coordinates of these points it is possible to calculate the equation.
Answer:
D) ,
Step-by-step explanation:
The blue boundary line has a y-intercept of 2 and a slope of 2.
It has equation :
Since the boundary line is not solid and the lower half plane of this line is shaded, its inequality is
The blue boundary line passes through the origin and has slope .
Its equation is
Since the boundary line is not solid and the right half-plane is shaded, its inequality is
The correct choice is D.
Answer:
No
Step-by-step explanation:
For x and y to have a proportional relationship, then
the ratio of k = must be equal for all points
(2, 5) → k = = 2.5
(3, 7.5) → k = = 2.5
(5, 12.5) → k = = 2.5
(18, 8) → k = = 2.25 ≠ 2.5
k is not equal for all values , hence no proportional relationship exists