Give the slope of y+2=3(x-7) Which one is it? A) The slope is 3 and (7,-2) is on the line ? B) The slope is 7 and (3,2) is on the line ? C) The slope is 3 and (-7,2) is on the line? D) The slope is 2 and (7,3 is on the line?

The answer is "Option A".

Step-by-step explanation:

Given line equation:

The standard equation of the line:

Comparing the values:

So, the points are: (7,-2) and the slope is: 3

That's why Choice "A" is correct.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

c

step-by-step explanation: