Find the value of y in parallelogram QRST.

y = 5

Solution:

7y = 5y + 10

7y - 5y = 10

2y = 10

=

y = 5

Checking:

7y - 5y = 10

7(5) - 5(5) = 10

35 - 25 = 10 ✓

a

step-by-step explanation:

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2