Some equations have two variables. you may recall seeing an equation written like the following:
y = 5x + 2. we can let x equal a number and then work the problem with this x- value to determine the
associated y-value. a solution to the equation must include both the x- value and the y-value. often the
answer is written as an ordered pair. the x- value is always first. example: (x, y). the order matters!
> 50
determine the y-value of each ordered pair based on the given x- value.
5. y = 6x – 15; (8,, ,(5, )
6. y = - 4x + 9; (-5,
,
,
)
=33
7. y = 2x – 1; (-4,
,
.
)
8. y = -x + 9; (-9,
), (1,
.
)
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step-by-step explanation:

positive

step-by-step explanation:

the quadrant is facing upwards

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh