PLEASE HELP IM TAKING A TEST RIGHT NOW Determine whether y=7x+2 is a linear equation. If so, write the equation in standard form.

it is linear

To write this equation in Standard Linear Form add

7x

to each side of the equation

7x+1y=2

Step-by-step explanation:

Rewrite the equation in standard form. The equation is now in standard form where A = 2, B = –1, and C = 6. This is a linear equation. Find the x- and y-intercepts of the graph of each linear function.

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