![\rule{300}{1}\\\dashrightarrow\large\blue\textsf{\textbf{\underline{Given question:-}}}](https://tex.z-dn.net/?f=%5Crule%7B300%7D%7B1%7D%5C%5C%5Cdashrightarrow%5Clarge%5Cblue%5Ctextsf%7B%5Ctextbf%7B%5Cunderline%7BGiven%20question%3A-%7D%7D%7D)
<em>Find the gradient of the line joining (-1,9) and (3,5)</em>
<em />![\dashrightarrow\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}](https://tex.z-dn.net/?f=%5Cdashrightarrow%5Clarge%5Cblue%5Ctextsf%7B%5Ctextbf%7B%5Cunderline%7BAnswer%20and%20how%20to%20solve%3A-%7D%7D%7D)
Use the slope formula:-
![\boxed{\frac{y_2-y_1}{x_2-x_1}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%7D)
Replace the letters with the numbers:-
![\boxed{\frac{5-9}{3-(-1)}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cfrac%7B5-9%7D%7B3-%28-1%29%7D%7D)
On simplification,
![\boxed{\frac{-4}{3+1}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cfrac%7B-4%7D%7B3%2B1%7D%7D)
On further simplification,
![\boxed{\frac{-4}{4}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cfrac%7B-4%7D%7B4%7D%7D)
![\circ\sf{SLOPE=-1}](https://tex.z-dn.net/?f=%5Ccirc%5Csf%7BSLOPE%3D-1%7D)
<h3>Good luck with your studies.</h3>
![\rule{300}{1}](https://tex.z-dn.net/?f=%5Crule%7B300%7D%7B1%7D)
Answer: He paid 0.50 cents in tax.
Step-by-step explanation:
What you do is you use the x and y and turn them into coordinate points and put them on the graph. The points would be…
(-2, 1)
(0,-1)
(2, -3)
I hope this helped!
Triangle Area Formula:
0.5 * Base * Height
SO,
0.5 * 10 * Height = 45.5
5 * Height = 45.5
Height = 9.1
Answer:
x=1.25, y=2.5
Step-by-step explanation:
x = # of soft tacos
y = # of double deckers
3x+3y=11.25 *4 => 12x+12y=45
4x+2y=10 *-3 =>-12x-6y=-30
6y=15
y=2.5
4x+2(2.5)=10
4x+5=10
4x=5
x=1.25