Which of the following has a graph that is a straight line? equation 1: y = 2x + 7 equation 2: y2 = x − 1 equation 3: y = 2x2 + 4 equation 4: y = 3x3

A straight line has an equation

The only possible choice is A (m=2, b=7).

Note that equations 2 and 3  determine quadratic parabolas and equation 4 determines cubic parabola. All parabola (quadratic and cubic are not straight lines).

d

step-by-step explanation:

by observation, we can see that the the graph is simply the graph of y = |x| that has been shifted 4 units downwards and 3 units to the left.

we can recognize in choice d :

y = | x + 3 |   - 4 (rewriting in general form)

y = | x - (- 3) |   - 4

the "-4 " term means   that the graph has been shifted by 4 units in the negative y direction

the "-3 " term means   that the graph has been shifted by 3 units in the negative x direction

this matches our observation of the graph described above.

answer: idk

step-by-step explanation: