Answer:
2.5
Step-by-step explanation:
8 -48 = 3 +13
*ADD 48 from each side(so -48+48=0 and 13+48=61)
8 = 3 +61
*Subtract from each side(so 3-3=0 and 8-3=5)
5 = 61
*Now u divide 5/5=1 and 61/5=2.5
ANSWER
(3,-1)
EXPLANATION
The given system of equations is :
5x+y=14
2x-y=7
For the first equation when x=0,
5(0)+y=14
y=14
The y-intercept is (0,14).
When y=0, 5x+0=14

The x-intercept is (2.8,0).
We plot the intercepts and draw a straight line through them to obtain the graph of 5x+y=14 as shown in the attachment.
We repeat the same process for the second equation 2x-y=7.
The intercepts are (0,-7) and (3.5,0)
The solution to the system is the point of intersection of the two straight lines.
The two straight lines intersected at
(3,-1)
Hence x=2, y=-1
The appropriate choice is ...
B. 1/7, 3/4, 5, 7
_____
Only the magnitude of the vertical scale factor affects the apparent width of the graph. The higher its value, the narrower the graph appears to be.
See below for answer to your question
Answer:
B
Step-by-step explanation:
In the attached file