Write an equation with a y-intercept of -1 and a slope of 1/2

y = (1/2)x - 1

Step-by-step explanation:

Follow the formula, y = mx + b, in which:

y = y

m = slope = 1/2

x = x

b = y-intercept = -1

plug in the corresponding numbers to the corresponding variables:

y = mx + b --> y = (1/2)x + (-1) --> y = (1/2)x - 1

y = (1/2)x - 1 is your answer.

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the axial of symmetry

step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.