Which graph represents a quadratic function that has one real zero?

Step-by-step explanation:

Next time, please share the possible answer choices.

A quadratic function with one real zero actually has TWO real, identical zeros.  The vertex of the graph lies on the x-axis (touching it in only one place).

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4