Answer:
- y = 1.8x +53.7
- 73.5 in 2005
Step-by-step explanation:
The 2-point form of the equation of a line is useful here. It tells you that for the points (x1, y1) and (x2, y2) the line can be written as ...
y = (y2 -y1)/(x2 -x1)(x -x1) + y1
For your given points, this is ...
y = (60.9 -57.3)/(4 -2)(x -2) +57.3
y = 1.8(x -2) +57.3
y = 1.8x +53.7 . . . . . simplify
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For x = 11 (in 2005), the predicted value is ...
y = 1.8·11 +53.7
y = 73.5
f(x) = 3x + 3
Solution:
Let us take f(x) = y.
The points indicated in the graph are (0, 3) and (–2, –3).
Slope(m) of the line passing through two points formula:
Substitute the given points in the above formula,
m = 3
constant is the y-intercept which implies c = 3.
The equation of a line standard form is y = mx + c.
y = 3x + 3
The equation of a line is
f(x) = 3x + 3
Answer: 1/2
Step-by-step explanation:
1) Put the equation into y=kx form
- add 4x to both sides
- divide by 8 on both sides to get y=1/2x
2) k is the constant of proportionality
Answer:
13/48
Step-by-step explanation:
your questions may be different but i had the same question on khan academy and got it right, hope this helps!
sorry i cant explain it further, im still not sure how brainly works as this is my first time using it