The work of a student trying to solve the equation 4(2x − 1) = 11 + 3x + 5 is shown below: step 1: 4(2x − 1) = 11 + 3x + 5 step 2: 8x − 4 = 16 + 3x step 3: 8x + 3x = 16 − 4 step 4: 11x = 24 step 5: x = 2.18 in which step did the student first make an error and what is the correct step?
a. step 2: 8x − 1 = 16 + 3x
b. step 2: 8x − 8 = 6 + 3x
c. step 3: 8x − 3x = 16 + 4
d. step 3: 8x + 3x = 16 − 8

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c