Question

What’s the question this is hard I haven’t been teaches this

Answer 1

We know that a linear equation is given generally as:

y = mx + c

where m = gradient

and c = y intercept

We can see from the scatter plot that the y intercept is 1.12

So, already we have limited our options to B and C.

Now let us find our slope with the second and third data points:

(1, 1.15) and (2, 1.18)

Slope is given as:

$m\text{ = }\frac{P_{2\text{ }}-P_1}{t_{2\text{ }}-t_1}$$m\text{ = }\frac{1.18\text{ - 1.15}}{2\text{ - 1}}$$m\text{ = }\frac{0.03}{1}$

m = 0.03

Which means that if we were to write a linear equation of this, it would be:

P(t) = 0.03t + 1.12

The only option that is close to this is B which is:

P(t) = 0.02t + 1.12

Hence, this is our answer.