Do you put negative numbers in the quadratic formula

Find the equation of a line that passes through the point (0, -2) and is parallel to a line that goes through the points (4, 0)

Nikitich [7]

Answer:

y = (-3/4)x -2

or: y = -0.75x -2

Step-by-step explanation:

First, find the slope of the line that it parallel to. Using equation

slope m = (y2-y1)/(x2-x1),

slope of line that passes through points (4, 0) and (0, 3)

= (3 - 0) /( 0-4)

= -3/4

Since the lines are parallel, both of them have the same slope, which is -3/4.

The point (0, -2) is actually the point of y -intercept (c) of the new line, so we can simply use the slope-intercept form to find the equation of line.

y = mx + c

y = (-3/4)x + (-2)

y = (-3/4)x -2

3 0

3 years ago

Zack has been planting young trees in his garden. The maple tree that is 42 inches tall is growing 1 inch per month, whereas the

kolezko [41]

In 16 months, two trees will be of same height

The trees will be of 58 inches tall

Solution:

Let "x" be the number of months

The maple tree that is 42 inches tall is growing 1 inch per month

Thus, equation for maple tree is given as:

Maple tree : 42 + 1 inch (number of months)

Maple tree : 42 + x ------- eqn 1

The oak tree that is 10 inches tall is growing 3 inches per month

Thus, equation for oak tree is given as:

Oak tree : 10 + 3 inch (number of months)

Oak tree : 10 + 3x -------- eqn 1

For two two trees to be equal in height, equate eqn 1 and eqn 2

$42 + x = 10 + 3x\\\\3x - x = 42 - 10\\\\2x = 32\\\\x = 16$

Thus, in 16 months, two trees will be of same height

What will that height be?

Substitute x = 16 in any one eqn

$10+3x = 10 + 3(16) = 10+48 = 58$

Thus the trees will be of 58 inches tall

3 0

4 years ago

Desjardin Landscaping's income statement reports net income of $73,700, which includes deductions for interest expense of $10,70

Lisa [10]

Answer:

11 times

Step-by-step explanation:

To calculate the interest earned with respect to the initials, what you owe is to add up all the income to the company, in this case the net profit that is 73700, plus the interest that is 10700 and income taxes of 33300. That sum is divided by the value of interest and will give the number of times the interest was earned. As follows:

(73700 + 10700 + 33300) / 10700 = 11 times

The answer would be 11 times he has earned interest.

5 0

3 years ago

-5x - 3y = -168 X = 5y

Mandarinka [93]

Answer:

-9 thats what my friend told me

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Find the measure of indicated unknown angle

RSB [31]

Answer:

60

Step-by-step explanation:

90÷2=45

45+75+m=180(sum of triangle)

120+m =180

m=180-120

m=60

4 0

3 years ago