# How do you graph #y=-9sqrtx# by plotting points?

##### 1 Answer

May 29, 2017

#### Explanation:

#"choose 3 values for x and evaluate for y"#

#"the values of x can only be positive"#

#x=0toy=0rArr(0,0)larrcolor(red)" one point"#

#x=1toy=-9sqrt1rArr(1,-9)larrcolor(red)" second point"#

#x=4toy=-9sqrt4rArr(4,-18)larrcolor(red)" third point"#

#"plot these points and draw a smooth curve through them"#

graph{-9sqrtx [-50.63, 50.6, -25.3, 25.34]}