Triangle lmn is similar to triangle pqr, and the hypotenuses of the triangles both lie on line x.
the slope of line x between (-7, 6) and (-4, 4) is -2/3. what is the slope of line x between (-1, 2) and (5, -2)?
a.-3/2
b.2/3
c.-2/3
d.3/2

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4