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natima [27]
3 years ago
10

What is the equation of the line, in point-slope form, that passes through the points (-1, 7) and (-2, 3)?

Mathematics
1 answer:
myrzilka [38]3 years ago
4 0

Answer:

Step-by-step explanation:

(3-7)/(-2+1)= -4/-1= 4

y - 7 = 4(x + 1)

y - 7 = 4x + 4

y = 4x + 11

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Is it like this?

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Put the following equation of a line into slope-intercept form 4x+3y=-21
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Step-by-step explanation:

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3 years ago
If a ball is thrown directly upward with a velocity of 50ft/s, it's height (in feet) after t seconds is given by y=50t-16t^2 wha
Tomtit [17]

Answer:

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Step-by-step explanation:

Since the function is a quadratic representing height, and the coefficient of the t² is negative, the vertex of the parabola will be the maximum height achieved by the ball.  

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To find the x coordinate of the vertex, use   x = -b/(2a)

We have x = -50/[2(-16)]

               

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7 0
3 years ago
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