Question

Rosa recorded the height (in centimeters) of a pea plant over a 10-day period for a science experiment. Please help me with this one (anyone)!

Answer 1

option a)

y = m(0.5) + 1.8

Explanation:

Equation

y = mx + c

represent the equation of straight line

here m = gradient of straight line

c = y-intercept

First find the gradient of the graph

m = y2 - y1 / x2 - x1

= 4 - 3 / 4 - 2

= 1 / 2

Put the values in the equation of straight line

y =mx + c

4 = 1/2(4) + c

c = 2

y = 1/2x + 2

which is approximately equal to y = 0.5x + 1.8