3 years ago

Question is in picture and is my final! Due in a hour and is 40% of my grade! Will give BRAINLIEST and extra pointsss!

Mathematics

1 answer:

tatyana61 [14]3 years ago

4 0

If he scored all 2 pointers, it would be 26. If he scored all 3 pointers,it would be 39.

28-x=y

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A line with a slope of -7 passes through the points (u,0) and (8,-7) what is the value of u?

laila [671]

Answer:

u = 7

Step-by-step explanation:

Using the slope intercept formula:

$\frac{y2 - y1}{x2 - x1} = slope$

Substitute our values from the points and the known slope:

$\frac{-7 - 0}{8 - u} = -7$

Now we multiply both sides by (8 - u) to isolate the x:

(8-u) x $\frac{-7}{8 - u}$ = -7 (8 - u)

Next we add 56 to both sides:

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Finish off by dividing both sides by 7:

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3 years ago

Write the equation of a line that is perpendicular to the given line and that passes through the given point.

HACTEHA [7]

First, let's re-arrange to slope-intercept form.

x + 8y = 27

Subtract 'x' to both sides:

8y = -x + 27

Divide 8 to both sides:

y = -1/8x + 3.375

So the slope of this line is -1/8, to find the slope that is perpendicular to this, we multiply it by -1 and flip it. -1/8 * -1 = 1/8, flipping it will give us 8/1 or 8.

So the slope of the perpendicular line will be 8.

Now we can plug this into point-slope form along with the point given.

y - y1 = m(x - x1)

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