Write an equation for the line below

y = 4/5x

Step-by-step explanation:

Two points on the graph is (-5, -4) and (0, 0)

Slope formula is [ y2-y1/x2-x1 ]

0-(-4)/0-(-5)

4/5

The y-intercept is non existent since its 0.

y = 4/5x

Best of Luck!

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