Answer:
LCD = 40
Step-by-step explanation:
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Hope this helps!
From the point-slope formula, we have:
where m is the slope, (x_0,y_0) are known points.
In this case, we have the slope and two points, we can substitute in the formula to get:
therefore, a=3
Note: you can also find a if you use the slope formula.
Answer:
x=1
Step-by-step explanation:
3x - 5 =7x -9
Subtract 3x from each side
3x - 5-3x =7x-3x -9
-5 = 4x-9
Add 9 to each side
-5+9 = 4x-9+9
4 = 4x
Divide each side by 4
4/4 = 4x/4
1=x
B is the answer :) the others are correct because parabolas are all u-shaped, with a degree of 2, and when the leading coefficient is negative, the parabola opens down, and if the leading coefficient is positive, the parabola opens upward