1. Theo has $25 dollars in his piggy bank account. Each week he puts $12 more dollars in it from mowing lawns.
a) Give the y intercept. $25
b) Give the slope. $12
c) Write the equations that models Theo's piggy bank.

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629