Y axis reflected, just imagine it
means all x values are going to turn negative
initial values:
A=(1,3)
B=(4,5)
C=(3,1)
reflected
A'=(-1,3)
B'=(-4,5)
C'=(-3,1)
A.
the reflected coordinates are A'=(-1,3), B'=(-4,5), C'=(-3,1)
B. the x coordinates flip flopped, they turned negative, y coordinates stayed the same
We can graph y = 2x/3 - 2 to find the line.
We know one point, which is the y-intercept. The y-intercept is (0,-2) so that is our first point. Plot that point on the chart. Now to find another point, we can just insert a number for x and solve for y. I am going to use the number 3.
y = 2x/3 - 2
y = 2(3)/3 - 2
y = 6/3 - 2
y = 2 - 2
y = 0
So when x = 3 y = 0. We have another point,which is (3,0) Plot the points (0, -2) (3, 0) and draw a line between the points and that is your graph. It will look the image I attached.
2. 3.14 times the radius squared
Answer:
x = ± 2![\sqrt{10}](https://tex.z-dn.net/?f=%5Csqrt%7B10%7D)
Step-by-step explanation:
given
40 - x² = 0 ( add x² to both sides )
40 = x² or
x² = 40 ( take the square root of both sides )
x = ±
= ±
= ± 2![\sqrt{10}](https://tex.z-dn.net/?f=%5Csqrt%7B10%7D)
Expected value equals sum of the product of each value and its possibility.
a.
1/2×75%+1/4×25%=0.4375
the expected value of grass growth for the day is 0.4375
b.
0.4375×31=13.5625
the expected value of grass growth for the month of july is 13.5625