Three times = 3 ×
<span>The difference of 65 and 48 = 65 - 48 = 17
(Difference = subtract)
That equals 3 </span>× 17
<span>
Answer = 3 </span>× 17
<span>(3 </span>× 17 = 51)<span>
Hope this helped☺☺
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Y=-2(x-5)^2+7
y=-2(x^2-10x+25)+7
y=-2x^2+20x-50+7
y=-2x^2+20x-43
dy/dx=-4x+20, d2y/dx2=-4
Since acceleration, d2y/dx2 is a constant negative, when dy/dx, velocity, equals zero, it represent the absolute maximum for y...
dy/dx=0 only when 4x=20, x=5
y(5)=7 so the vertex is at the point (5, 7). It has an absolute maximum at that point and decreases without bound on either side of x=5. So the parabola opens downward.
its 3
don't mind the random letters
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Y = 3x - 3. The slope here is 3. A perpendicular line will have a negative reciprocal slope. This can be found by " flipping " the slope and changing the sign......3 or 3/1...." flip " ...becomes 1/3...change the sign...becomes -1/3. So ur perpendicular line will need a slope of -1/3.
y = mx + b
slope(m) = -1/3
(-7,9)...x = -7 and y = 9
now we sub and find b, the y int
9 = -1/3(-7) + b
9 = 7/3 + b
9 - 7/3 = b
27/3 - 7/3 = b
20/3 = b
so ur perpendicular line containing the brace is : y = -1/3x + 20/3