What is the slope of the line passing through the point 2,5and 0 negative 4

The answer is 4.5

Step-by-step explanation:

slope = y2-y1/x2-x1

= -4-5/0-2

= -9/-2

= 9/2 = 4.5

hope it helps!

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

ratio is 2 : 9

the answer is three

13.5 : 3