schoolking
Answered

Looking for reliable answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Discover in-depth solutions to your questions from a wide range of experts on our user-friendly Q&A platform. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.

Solve the system using substitution or elimination:

y = x^2 - 3x + 8

2x - y = -8

Please show and explain all steps, thank you for your help.

Sagot :

fieryanswererft

Answer:

x= 0, 5      y = 8, 18

Step-by-step explanation:

y = x^2 - 3x + 8 ..........eq 1

2x - y = -8 .............eq 2

from eq 2, lets make y the subject,

-y = - 8- 2x

y = 2x +8 ...........eq 3

using simultaneous method, using eq 1 and 3

2x+8 = x^2- 3x + 8

x^2 -5x=0

x(x-5) =0

x= 0, 5

if x = 0,

y = 2x+ 8 = 2(0)+8 = 8

if x = 5

y = 2(5) + 8 = 18

We appreciate your visit. Our platform is always here to offer accurate and reliable answers. Return anytime. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Westonci.ca is committed to providing accurate answers. Come back soon for more trustworthy information.