Solve the system of equations y=2x+54 y=8x

It would be x=9

Step-by-step explanation:

8x=2x+54

subtract 2 from both sides

6x=54

divide by 6 on both sides

x=9

x=9

y=72

Step-by-step explanation:

since they are equal to each other, write it out as 2x+54=8x. then subtract 2 from both sides.

the answer should be 6x=54, so you divide both by 6. the answer is 9.

so x = 9.

then you plug 9 back into the ORIGINAL problem. so 2(9) + 54.

2 x 9 = 18.

54 + 18 = 72.

so the final answer is (9, 72). x = 9, y = 72.

a) justify

step-by-step explanation:

justifying is just part of everyday life. justify kind of means proof so i think the answer is a) justify.

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )