Answer:
x3
Step-by-step explanation:
The graph (by some miracle) has been uploaded for you. It is just about the first time I've done this sort of thing, and I've answered nearly 800 questions.
The first thing you have to do is study the graph. The two functions are
f(x) = 4^x That's the curved graph. (in red)
g(x) = x + 4. That's the straight line. (in blue)
You know that the first one is not a linear relationship because the x values go from integer values -2 to 2 (including 0). The y values are a bit different. They go from 1/16 to 16 with those integer values. So you could try y = 4^(-x). It doesn't work, but you could try it. It gives the table numbers for y in the reverse order that the table you are given goes. For x you get -2 -1 0 1 2 and for y you would get 16 4 1 1/4 1/16.
You could try y = (1/4)^x
For this try, you would get x = -2 -1 0 1 2 and for y = 16 4 0 1/4 and 1/16
but that doesn't work either.
You could try until you get y = 4^x which does work.
g(x) is a lot easier to deal with. It looks better behaved. as x goes up, so does y. You will find that the y values obey y = x + 4. You could try other lines, but that one works. Many times it's just a guess
ANSWER:
y = ( 3 / 2 )x - 5 / 2
The linear form for the equation is:
y = ( 3 / 2 )x - 5 / 2 .
STEP-BY-STEP EXPLANATION:
The formula for the linear form or slope-intercept form of a line is as displayed below.
y = mx + b
Using this, we will simply place the different values in the same order as given in the formula to obtain our answer.
3x - 2y = 5
- 2y = - 3x + 5
y = ( - 3x + 5 ) / - 2
y = ( 3 / 2 )x - 5 / 2
Answer:
Step-by-step explanation:
{−2w + 2l = 4
{40 = 2w + 2l
__________
[Plug this back into both equations above to get the width of 9 metres];
I am joyous to assist you anytime.