Scores on an achievement test (a) are related linearly to scores on another test (b). Here are two students’ scores: a = 500, b = 100 and a = 680, b = 127. a. Using the ordered pair (a, b), find a linear equation for these data points. b. Use this linear equation in (a) to predict the score on the b test for a student with a score of 700 on the a test.

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer

1,150 give brainliest

step-by-step explanation

2r= 2300

r =1150

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

step-by-step explanation:

what is the figure? attach a picture.