Answer:
I
Step-by-step explanation:
Reflecting the point across both axes changes the signs of both coordinates. The reflected point will be (2, 8). Both coordinates are positive for points in Quadrant I.
For 81 it's 8.1 in decimal or which way you need it in?
Answer:
y= -5/3 x - 6
Step-by-step explanation:
3x-5y=20
-5y=20-3x
y= (3/5)x - 5
3/5 is the slope
a perpendicular line's slope is the opposite reciprocal
-5/3 = m
y-y1=m(x-x1)
(-6, 4) = (x1, y1)
plug in the values
y-4= -(5/3) (x+6)
y-4= -5/3 x - 10
y= -5/3 x - 6
Answer:
c) 4
Step-by-step explanation:
<u><em>The sum of two numbers is 14. The larger number minus three times the lesser number is -2</em></u>
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To solve this question, we need to write the statement mathematically;
Let the two numbers be x and y
"The sum of two numbers is 14" can be mathematically written as x+y = 14
and
"The larger number minus three times the lesser number is -2" can be mathematically written as x - 3y = -2
x + y = 14 ------------------(1)
x - 3y= -2 -------------------(2)
Subtract equation (2) from equation (1)
[x - x = 0 y - (-3y)=4y 14-(-2)=16]
4y = 16
To get the value of y divide both-side of the equation by 4
4y/4 = 16/4
y = 4
Substitute y=4 into equation (1)
x + y =14
x +4 =14
Subtract 4 from both-side of the equation
x + 4 -4 = 10]-4
x = 10
x=10 and y =4
Therefore the lesser number is 4
