Using the graph below, select all statements that are true. 2
0
-1
0
-2
o
D A. f(-3.4) = -4
I B. This is the graph of the absolute value function.
O C. This is the graph of the greatest integer function.
D. This graph is one-to-one.
D E. f(4.9) = 5
SUBMIT

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

i suppose it should be (y=2x-5)

step-by-step explanation: