The graph below shows the relationship between the number of batches of brownies, b, and the number of cups of flour, f, required. based on the information in the graph, which equation can be used to predict how many cups of flour are needed for 10 batches of brownies?

f = 2.5b + 10

f = 2.5b

f = 10b + 2.5

f = 10b

The equation which can be used is based on the graph.

Step-by-step explanation:

As the graph given is linear so we can apply linear (straight line) equations.

Equation of a straight line, where is the slope.

We can find  by using point-slope formula as here we can pull two co-ordinate points from the graph.

Point-slope formula,.

Then

Lets choose two points from the graph,we have in terms of .

Now comparing our values with that of the straight line equation we can see that

Lets find the exact value of putting in the equation ,we have

So we can say that is the relevant answer which has

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer