Answer:
2x^2+5x-3
Step-by-step explanation:
Answer:
C. y = 2x + 8
Step-by-step explanation:
✔️First, find the slope of the line that goes through points (-2, 4) and (6, 20):
Slope (m) = ∆y/∆x = (20 - 4) / (6 - (-2))
Slope (m) = 16/8
m = 2
✔️Find the y-intercept (b):
To do this, substitute (x, y) = (6, 20) and m = 2 into y = mx + b
Thus:
20 = 2(6) + b
20 = 12 + b
20 - 12 = b
8 = b
b = 8
✔️Write the equation by substituting m = 2 and b = 8 into y = mx + b
Thus:
y = 2x + 8
X = 23
y = 7
x + y = ?
23 + 7 = 30
ANSWER: x + y = 30
The answer is D. 9 inches. This is because the answer is divided by 5. 6 x 5 = 30 and 9 x 5 = 45.
