Answer:
2
Step-by-step explanation:
If you square -4 it equals 16 and if you take that number and divibe it by 8 you get 2.
Answer:
123.76
Step-by-step explanation:
a negative times a negative is a positive
22.1 times 5.6 is 123.76
Answer:
it is a zero slope
Step-by-step explanation:
Answer:
Step-by-step explanation:
y = 2x - 8. slope here is 2. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign.
slope 2 or 2/1.....flip it....1/2....change the sign...-1/2. so our perpendicular line will have a slope of -1/2.
y - y1 = m(x - x1)
slope(m) = -1/2
(6,3)...x1 = 6 and y1 = 3
now we sub
y - 3 = -1/2(x - 6) <==== ur equation
Answer:
- b. y = 2/3x +5
- c. y = -3 or -1/2
Step-by-step explanation:
b. The particualar steps for solving a linear equation such as this may vary from one equation to another. In general, you want to put all the y-terms on one side of the equal sign and everything else on the other side. Here's how we'll do that in this case.
Use the distributive property to eliminate parentheses.
... 6x -3y +12 = 4x -3
Find the unwanted terms on the side of the equation where y is, then add their opposite. In this case, we're adding -(6x+12)
... -3y = (4x -3) -(6x +12) = -2x -15
Divide by the coefficient of y.
... y = -2x/(-3) -15/(-3)
... y = 2/3x +5
____
c. This is a 2nd-degree (quadratic) equation with y as its only variable. The factor (2y+1) appears in both terms so we can use the distributive property to factor it out. Then the equation becomes ...
... (y +3)(2y +1) = 0
The zero product rule tells us this product will be zero only when one or the other of the factors is zero. This fact helps us find the values of y that are the solution to the equation.
For y+3 = 0:
... y + 3 = 0
... y = -3 . . . . . . add -3 to both sides of the equation
For 2y +1 = 0:
... 2y +1 = 0
... y +1/2 = 0 . . . . divide by 2
... y = -1/2 . . . . . . add -1/2
The solutions are y = -3 or y = -1/2.
