All categories

3 years ago

Math help

1 answer:

3 0

Hello : let A(1;5) and B(-2;14)
the equation is y = ax+b .... a is a slope
a = (yb -ya)/(xb -xa)
a = (14-5)/(-2-1)
a = -3
y = -3x+b
A passes through the line : 5 =-3(1)+b ..... b = 8
y = -3x+8

You might be interested in

Jose needs to enclose a rectangular section of his yard. The perimeter of the section is 27 feet, and the area is 35 square foot

Ratling [72]

A = 35 sq ft
L = 10 ft 
W = 3.5 ft

3 0

3 years ago

Isabel company offers other programs and incentives to help employees with their savings and expenses.

kogti [31]

Answer:

any picture or anything?

Step-by-step explanation:

7 0

3 years ago

Is the relationship shows by the data linear? If so, model the data with an equation.

Kipish [7]

Answer:

Yes, B

Step-by-step explanation:

Yes the data is linear because there is a constant rate of change.

For x or the input the rate of change is plus 2

For y or the output the rate of change is plus 4

y/x is your slope so 4/2=2

and the only equation with a slope of 2 is B

4 0

3 years ago

What is the value of the expression below?

garri49 [273]

Answer:

Step-by-step explanation:

$15 - 7 \times 2 + 2^3 =$

Use the correct order of operations, PEMDAS.

$= 15 - 14 + 8$

$= 1 + 8$

$= 9$

8 0

3 years ago

Read 2 more answers

10. Polygon WXYZ has vertices W(-1.5, 1.5),

vovikov84 [41]

Answer:

See explanation

Step-by-step explanation:

Polygon WXYZ has vertices W(-1.5, 1.5), X(6, 1.5), Y(6, -4.5), and Z(-1.5, -4.5).

Find the slopes of all sides:

$WX:\ \dfrac{1.5-1.5}{6-(-1.5)}=\dfrac{0}{7.5}=0$ - horizontal line

$XY:\ \dfrac{-4.5-1.5}{6-6}=\dfrac{-6}{0}$ - slope undefined, so the line is vertical

$YZ:\ \dfrac{-4.5-(-4.5)}{-1.5-6}=\dfrac{0}{-7.5}=0$ - horizontal line

$ZW:\ \dfrac{1.5-(-4.5)}{-1.5-(-1.5)}=\dfrac{6}{0}$ - slope undefined, so the line is vertical

Vertical and horizontal lines are perpendicular, so all angles W, X, Y and Z are right angles. Hence, quadrilateral WXYZ is a rectangle

6 0

3 years ago