Formula of the line
y=mx+b.
For parallel line slope m is the same, so m= -2.
y=-2x+b.
We need to find b,using the point (3,1).
1= - 2*3+b
b=7
y = -2x +7
Answer is A. y = -2x +7.
Multiply the top one by 3 for x, so you can eliminate x and find y
then plug in the y into one of the equations to find x
Answer:
1
Step-by-step explanation:
y(x)=4x
y(x)=4
<=>4x=4
<=>x=1
Answer:
I think it should be b
Step-by-step explanation:
B is the answer I think
x = -3
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The following steps are taken to isolate x on one side of the equation in order to set it equal to a value on the other side of the equation.
4x + 3 = -9
Cancel out the 3 by subtracting it from both sides of the equation (since it is positive).
4x + 3 - 3 = -9 - 3
4x = -12
Cancel out the 4 (from 4x) by dividing both sides of the equation by it (since it is currently being multiplied).
4x / 4 = -12 / 4
x = -3
Variable x is now isolated on the left side of the equation, leaving the right side equal to x.
