9514 1404 393
Answer:
C. Reflecting over the y-axis and then translating to the right 8 units
Step-by-step explanation:
Reflection over the line x=4 gives you the transformation ...
(x, y) ⇒ (2·4 -x, y) = (-x +8, y)
This is precisely the same transformation you get by reflection over the y-axis:
(x, y) ⇒ (-x, y)
followed by translation to the right 8 units:
(-x, y) ⇒ (-x +8, y)
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Reflection over x=4 is the same as reflection over y and translation right 8.
Same would need to get at least a 95% on the next test, if he would like to receive a total average of an 80%
<h2>
Answer:</h2>
To figure this out you need this formula: y = mx + b.
- m (or slope) = -5
- b (or the y-intercept) = 10
Answer:
Step-by-step explanation:
1-124: (convert 1/5 to tenths)
3/10+2/10=5/10 ->1/2
so you have a 1/2 chance of getting blue or green
1-125:
1/2 of the circle is green and 1/4 of the circle is green (1/2 =2/4)
2/4+1/4=3/4 so you have a 3/4 chance of getting purple or green
1-126
a. x+8=21
just minus 8 from x an 21
x=13
b. x-31=55
add 31 to both sides
x=86
c. 3x=54
you are going to divide 3 from both sides
x=18
d. x/5=10
you want to take the reciprocal of x/5 to get rid of x (5/1) and do that to both sides
x=50
<h2>
Answer:</h2>
First, we must determine the slope, then we find the y-intercept using slope formula and slope-intercept form.
<u>For slope:</u>
<u /><u />
Slope (m) = 7
<u>For y-intercept:</u>
<u /><u />
Y-intercept (b) = 26
Using this information, we can now create the equations for this line.
Formulas:
Slope formula: <em>y₂ - y₁/x₂ - x₁</em>
Slope-intercept form: <em>y = mx + b</em>
Point-slope form: <em>y - y₁ = m(x - x₁)</em>
<em></em>
*Note: (x₁, y₁), (x₂, y₂) = <em>2 points on the line</em>