R Markdown

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When you click the Knit button a document will be generated that includes both content as well as the output of any embedded R code chunks within the document. You can embed an R code chunk like this:

Question 1

input<-12
fact <- 1

for(i in 1:input) {
    fact = fact * i
}
print(fact)
## [1] 479001600

Question 2

sequence of numbers from 20:50 and the output divided by 5

vec <- seq(20, 50, 5)
as.numeric(vec)
## [1] 20 25 30 35 40 45 50

Question 3

create a “Quadratic”function. ax^2 + bx + c

quadratic <- function(a,b,c) {
  root <- (b^2) - (4*a*c)
  
  x_pos <- (-b + sqrt(root)) / (2*a)
  x_neg <- (-b - sqrt(root)) / (2*a)
  
  return (paste0( "the two x-intercept for the quadratic equation are: " , x_pos , " and " , x_neg))
} 

quadratic(1,7,5)
## [1] "the two x-intercept for the quadratic equation are: -0.807417596432748 and -6.19258240356725"

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot.