Answer:
see explanation
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 5x + 4 ( subtract 4 from both sides )
y - 4 = 5x ( divide both sides by 5 )
= x
Change y back into terms of x
(x) =
Answer:
Step-by-step explanation:
A recipe for sparkling grape juice calls for 1.5 quarts of sparkling water and 3/4 quart of grape juice.
The ratio of sparkling water to grape juice is
So, to make 100 quarts of punch you need x quarts of grape juice and 2x quarts of sparkling water.
Hence,
Answer:
If x=0, y = -2: (0,-2)
if y=0, x = -6: (-6,0)
Step-by-step explanation:
-3x -9y = 18
.
Reorganize to point-slope format: y = mx +b.
.
Add 3x to both sides
.
-9y = 3x + 18
.
Divide both sides by -9.
.
y = -(3/9)x + 18/-9
.
y = -(1/3)x - 2
.
To graph you need two points, since this is a linear equation.
.
<em>(I saw that there was two variables which most of the time means plotting points and since you said point this is what I thought it was. If it's not then tell me I'll re-solve it but next time if its something like graphing and solving linear equations you should always write that just in case.)</em>
Hope this helps though.
The first one is 200 cause 360-160=200 cause it is the arc