8 x 51 = 408 and 8 + 51 = 59
Answer:
I think there is an error in the question, I assume it reads:
4x+2y=20
x+3y=50
If not, please make appropriate corrections to the question.
Answer: x=-4, y=18
Step-by-step explanation:
4x+2y=20
Simplify, divide by two,
2x+y=10.....................(1)
x+3y=50....................(2)
Multiply (2) by 2
2x+6y=100 ....................(2a)
Subtract (1) from (2a)
2x+6y - (2x+y) = 100 - 10
5y = 90
y=18..............................(3)
Substitute (3) into (1)
2x+(18)=10
2x = 10-18 =-8
x=-4 ............................(4)
Substitute (3) and (4) into (1) for verification
2x+y = 2(-4)+18 = 18-10 = 10 checks.
Substitute (3) and (4) into (2) for verification
x+3y=-4+3(18) = -4+54 = 50 checks.
Have a nice day!
Answer:
A) Neither function A nor function B has an x-intercept.
Step-by-step explanation:
5/6 is the answer for your question
(0,0) is the origin of a graph, so both W and W' remain at the origin.
The other 3 vertices double in size:
If you multiply all the numbers in X, Y and Z by 2, they become the numbers in X', Y' and Z'.
X(1,2) x 2 = (1*2,2*2) = X'(2,4)
Y(4,2) x 2 = (4*2, 2*2) = Y'(8,4)
Z(3,0) x 2 = (3*2, 0*2) = Z'(6,0)
That means the scale factor is 2
