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Answered

SAMPLE PROBLEMS
A. Rewrite the following equations in the form Ax + By = C.
Standard form (Ax + By = C)






4. y=-x+9
x + y = 9 (ilipat lang yong x sa left at palitan yong sign)
5. Y = -3x + 7
3x + y = 7
6. y = 2x + 8
-2x + y=8
2x - y = 8
B. Rewrite the following equations in the form y = mx + b and identify the values of m and b
Slope - intercept form (y = mx + b)
3. 3x + y = 11
y=-3x + 11 m = -3 and b= 11
4. X + 2y = 10
2y = -x + 10
10
2​

Sagot :

Tierthugo

Answer:

4. y = -x +9

y = -x +9

y +x = -x +9 +x

y +x = 9

x +y = 9

5. y = -3x +7

y = -3x +7

y +3x = -3x +7 +3x

y +3x = 7

3x + y = 7

6. y = 2x +8

y = 2x +8

y -2x = 2x +8 -2x

y -2x = 8

(-2x +y)(-1) = 8(-1)

2x -y = -8

3. 3x +y = 11

3x +y -3x = 11 -3x

y = 11 -3x

y = -3x +11

y=-3x + 11 m = -3 and b= 11

4. x +2y = 10

x +2y -x = 10 -x

2y = -x +10

(2y)/(2) = (-x +10)/(2)

y = -x/2 +5 or y = -½x +5

2y = -x + 10

10

2

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