Eight algebra questions (explanations would be appreciated):

Use substitution to solve the following:

1)

y=x²

y=x+2

2)

y=x²+3

y=4x

3)

x²+4y=1

y=x+1

4)

x²-3y=-2

y=4+x

5)

x²-2y=-4

y=6-x

6)

x²+4y=9

y=x-3

7)

x²+5y=16

y+x=2

8)

y=x²-6x

3x-y=-10

Question

Leilani Friedman

Mathematics

6 May, 09:32

Eight algebra questions (explanations would be appreciated):

Use substitution to solve the following:

1)

y=x²

y=x+2

2)

y=x²+3

y=4x

3)

x²+4y=1

y=x+1

4)

x²-3y=-2

y=4+x

5)

x²-2y=-4

y=6-x

6)

x²+4y=9

y=x-3

7)

x²+5y=16

y+x=2

8)

y=x²-6x

3x-y=-10

+2

Answers (1)

Know the Answer?

Fry · Answer 1

Step-by-step explanation:

1)

y=x²

y=x+2

so: x² = x+2

x²-x-2 = 0

(x+1) (x-2) = 0

x+1=0 or x - 2=0

x = -1 or x=2

x = - 1 y = - 1+2 = 1

x = 2 y=2+2=4

continu same method

Eight algebra questions (explanations would be appreciated):Use substitution to solve the following:1)y=x²y=x+22)y=x²+3y=4x3)x²+4y=1y=x+14)x²-3y=-2y=4+x5)x²-2y=-4y=6-x6)x²+4y=9y=x-37)x²+5y=16y+x=28)y=x²-6x3x-y=-10

Eight algebra questions (explanations would be appreciated):

Use substitution to solve the following:

1)

y=x²

y=x+2

2)

y=x²+3

y=4x

3)

x²+4y=1

y=x+1

4)

x²-3y=-2

y=4+x

5)

x²-2y=-4

y=6-x

6)

x²+4y=9

y=x-3

7)

x²+5y=16

y+x=2

8)

y=x²-6x

3x-y=-10