(0, 2 ), (4,5)
to draw a graph of a straight line , we only require 2 points
select any 2 values for x, substitute them into the equation for the corresponding y- coordinates
x = 0 → y = 0+2 = 2 ⇒ (0, 2)
x = 4 → y = 3+2 = 5 ⇒ (4, 5)
Plot these 2 points and draw a straight line through them for graph
Answer:
4.19
Step-by-step explanation:
Find the mean:
![\text{Mean}=\frac{12+19+9}{3}=\frac{40}{3}](https://tex.z-dn.net/?f=%5Ctext%7BMean%7D%3D%5Cfrac%7B12%2B19%2B9%7D%7B3%7D%3D%5Cfrac%7B40%7D%7B3%7D)
Find the standard deviation:
![\text{Standard Deviation}=\sqrt{\frac{(12-\frac{40}{3})^2+(19-\frac{40}{3})^2+(9-\frac{40}{3})^2}{3}}=\sqrt{\frac{158}{9}}\approx4.19](https://tex.z-dn.net/?f=%5Ctext%7BStandard%20Deviation%7D%3D%5Csqrt%7B%5Cfrac%7B%2812-%5Cfrac%7B40%7D%7B3%7D%29%5E2%2B%2819-%5Cfrac%7B40%7D%7B3%7D%29%5E2%2B%289-%5Cfrac%7B40%7D%7B3%7D%29%5E2%7D%7B3%7D%7D%3D%5Csqrt%7B%5Cfrac%7B158%7D%7B9%7D%7D%5Capprox4.19)
F(3)=2*3-8=-2.
Hope that helps.
Answer:they made 14.76
Step-by-step explanation:
at the bake sale
Answer:
yes
Step-by-step explanation: